Class 9 Maths | Chapter 2 | Exercise 2.5 Q7 | Polynomials | NCERT

Next Video : • Class 9 Maths | Chapte...
Previous Video : • Class 9 Maths | Chapte...
Chapter 2 "Polynomials" Playlist : • Class 9 Maths | Chapte...
In this session we will be continuing with the chapter "Polynomials".
We will cover Exercise 2.5 Q7 of chapter 2.
You can also follow me at :
learnwithmansi
LIKE | SHARE | SUBSCRIBE
#class9maths #Polynomials #learnwithmansi

[@nishant8797]

Maths is easy when I understand with your video 😌😌😌

[@mauliksingh3836]

True 😂

[@imtiyazahkhanimtiyazahkhan3206]

Hii

[@shubhamsahu7425]

true

[@crxgaming8024]

And english is also easy when i read your comment

[@english_and_science_]

​@@crxgaming8024 ❤

[@आचार्यप्रमोदपारसजी]

All the best for today exam 🤛🤛😅

[@praveenpatnaik1880]

Thanks bro

[@funwithjayesh3005]

Really thanks to you bro

[@rinkukumhar7143]

Thank you

[@आचार्यप्रमोदपारसजी]

😊😊😊

[@applepiepinefruit7626]

we don't have an exam😂

[@Yuckeditz]

All the best for tomorrow's exam

[@Liilacxoxo]

Atb bro !

[@vickyagarwal1684]

Thank u

[@artcraft6238]

Your teaching is soo understandable mam 👍👍

[@satisfactory3247]

Mam isme to (a-b)3 bhi lga sakte h

[@prajwal2022]

Pucha kisi ne tujse ?

[@prashanttech5208]

@@prajwal2022 sahi keh raha hai vo bhosdk

[@SunilSingh-xl6eh]

Yes

[@hobiiyahhhhhh_]

@@satisfactory3247 Lekin ye wala method easy h plus wala

[@serialkiduniya639]

Mam sorry to say but q7 ka 1 ka formula (a-b) hona chahiye lekin aapne + kyu likha

[@oriphillazkumar936]

yes me also have the same doubt

[@serialkiduniya639]

but mam have no reply till now

[@oriphillazkumar936]

@@serialkiduniya639 yes

[@aniltyagi260]

Mam we can use identity no. 7 in the minus equation

[@shubhamedits2136]

Haa

[@sarakhan458]

Ys but ma'am ne ki nahi

[@callmemaybe7206]

Yes i know right.. that's the same thing i was thinking

[@amishasharma8444]

Pta ni... Pucho mam se

[@hannahlevi3710]

see that minus will change to plus
(100 - 1)³ = { 100 + (-1) }³
so we will use (a+b)³
hope u understood it 💖

[@ChandanSingh-nq4hf]

Thank you 🙏 mam for teaching
I am khushi 🤚🤚🤚
From class 9th 🏫🏫🏫🏫🏫

[@imtiazahmed5510]

Thank you mam jo ist part hai mam us maen( a-b)(cube) identity bhi laga sktaa hain????

[@raklikhit]

M= muskil h manjil
A=asan h tarika
T=thodi mehnat
H= hardwork

[@UNKNOWN-zb2dw]

M=meri
A=aatma
T=tujhe
H =hamesha
S=satayegi
This is the correct explanation 😁😁😁😁

[@tweety7068]

@@UNKNOWN-zb2dw :/

[@Meena_aggarwal_]

@@tweety7068
M:Mental
A:Attack
T:To
H: Handsome
S: Students
This is correct 😁

[@tweety7068]

@@Meena_aggarwal_ LOL

[@redo_bgmis]

Copyright claim :/

[@ridhanshikant7998]

Waise abhi kon kon dekh rha h

[@chanduVS]

I am weak in maths so I see this mam video and understanding everything thankyou mam

[@bablibisht-bh7db]

Congratulations aap Mai see aadhe log 10th Mai honge😂😂

[@arshilsiddique9119]

Tomorrow is my maths exam 😓

[@indrakant-o2q]

All the best❤ you can do it

[@sanskrutirevankar2632]

All the best 🎉🎉

[@arshilsiddique9119]

@@sanskrutirevankar2632 thnx

[@arshilsiddique9119]

@@sanskrutirevankar2632 But today i am in class 11 with 89.2 % in class 10
Subject - Maths

[@gopalmittal6704]

Mam ham ( X - Y )³ =X³ -Y³ - 3xy ( X - Y ) ye formula bhi use kar sakte hai

[@craftyuniverse.7521]

Kr skte hain pr difficulty ati h so i think the first one is better..

[@lechuvaijuramesh3051]

MAM YOUR EXPLANATION IS VERY NICE AND IT IS HELP ME IN THE EXAM
THANK YOU MAM FOR MAKING THIS VIDEO
I UNDERSTAND ALL THE QUESTION MAM 😁

[@Kavitaposwal130]

Thankyou for helping me to understand everything at one night before exam 🙂

[@devmehra3791]

Ji

[@aisha.a5964]

Same

[@GurdeepSingh-gz6uo]

Today is my exam..... Aur abhi 1:40 huye hai...😅mujhe to dar lagh rha hai.. exam se.... Abhi 2 chapters pending hai... Aur neend bhi aa rahi hai .....✋😅💬very nice explanation mam....❤️Jo bhi aap padhati ho... Wo sabhi yaad rehta hai mujhe....pehle maine chapter 6 aur 7 ki video dekhi thi... Aur mujhe wo sare chapter ate hai..... Aur kal exam hai... To mai unki revision nhi kri hai..... Kyun ki mujhe ata hai....💖

[@fumeig]

My exam is today and i have 4 more maths chptr to study 💀

[@arfaparveen7]

1:40 p.m. ho rahe hain 2 chapter pending Hai, nind aa rahi hai, lekn itni long comment krna ka time hai inke pass.

[@sekhri4650]

@@arfaparveen7 yes right

[@Aliba.11]

@@arfaparveen7 right 😂😂

[@rayazahamd7710]

all the best😢

[@UNKNOWN-zb2dw]

Me is here to read comments too 😜😜

[@g.kqhquiz3222]

Ma'am you are very good teacher..💯👀🙏 and I will pray to mahadev you always happy..🙃🤍

[@princehacker5367]

0000000000000😂😂😂.
Thank you so much 😀 😀

[@malem4023]

Ma'am there is also 1 identity (x-y)³=x³-y³-3xy (x-y)
But here why you are not using this identity when here we have (x-y)³form

[@voodaswapna1663]

So that viewers can learn only one formulae anything is correct✅

[@lodhilodhi5477]

Mc bo ek se ha

[@shreyansh6841]

All the best for tomorrow exam🤣

[@rishantsarohi1402]

Mam thankyou for this video this video help me a lot . Tomorrow is my exam.

[@physiofitness7021]

Mam, on what type of board are you writing.

[@vivekgamer_z3947]

U ARE THE BEST TEACHER
YOUR EXPLANATION TRICK IS SO EXCELLENT

[@inspire-NCC]

How many students watch this video 1 day before the exam

[@thefiregirl6501]

mam plz bring lines and angles fast its coming in test ...its not only for ur 1 subscriber ...i made my 47 classmates subscribe u and we all need this ch so mam plz

[@hustlevibee]

Mam in first question why don, try (a-b) ^2 identity because it is the correct identity

[@apaahwan3678]

^3 not ^2 and what you are telling it's also correct.

[@Zen_Zypher_Horae]

We have to use the (a-b) whole cube

[@mayachoudhary3720]

Thanks mam mujhe ise q. Me bhut problem hui thi or aap ki wajah se mere problems clear ho gai .😊😊👍

[@ridhimasharma6477]

Mam in question 3part the identity should be (a-b)cube

[@apaahwan3678]

In 1st part also

[@kamnithakur9936]

mam your teaching is very good

[@chetansingh70492]

a³-b³-3(ab)(a+b) mam direct ye formula bhi lga skte hai kya

[@daulatsingh5640]

Maths is being so interesting when I watch your videos 👍🏻👍🏻🎉🎉😊😊😌😊

[@pihugarg3144]

without mam videos maths is not interesting

[@srijalchettri8356]

I am not understand question

[@pranavsrivastav524]

@@srijalchettri8356 Why are you not understand the question? 😵‍💫 (RIP grammar)

[@alishacreativities9399]

​@@pranavsrivastav524😂😂

[@AnmolBhakar-j3i]

tjeh samajh bhi nhi ayenge@@srijalchettri8356

[@suryanshpundir7456]

Best teacher math mam bhot help kra rahi ho aap🙏🙏😄😄😄❤❤

[@sargamgupta5189]

Why are we not using (a-b) whole cube identity

[@shikarjaiswal536]

Thanku maam you are the best teacher ❤

[@johalcs77]

Mam usme hmne( a-b)3 ki identity kyu nai use kri

[@mamtagupta6475]

mam we have to put (x-y)3 mam you are doing wrong
answer is correct but the solution (formula) is wrong mam pls explain again is this method

[@alkaverma2201]

Iam also agree with you bro.

[@armanmehraj5086]

Yeah can anybody tell what to do now😂

[@anotherhuman__]

I guess it,s not wrong but yeah we should use (x-y)^3 instead

[@aruchavan449]

Mam mere liye math apke bina imagine Karna Iss Duniya ko chod ke Jane ke barabar hai. Very very thanks mam TH-cam pe maths padhane ke liye.

[@artirathodchavan9223]

Yes bro🙏🙏

[@tanujakhandait668]

Mam in first one we also put (x-y) 3 formula

[@jinishakhawase2731]

Yes but when I use that identity, my answer come like- 🥺 what

[@KamleshSharma-ni5nu]

@@jinishakhawase2731 yes

[@Euphorians_75]

Can't we use 7th identity????

[@reynaa1876]

we can actually just simply do (a-b)³ instead of (a+b)³ tbh

[@amazingshorts5185]

But by using a-b cube answer is not correct 🤨

[@nihalmaandi2182]

You are the good mathematician 🎉🎉🎉🎉

[@manjunathp.t6136]

Hello mam you will explain very before one day of exam i will see your videos but still i can understand soo thank youu sooo much mam

[@oriphillazkumar936]

mam question 1 (a-b)3 identity should be used as (100-3)

[@meshtilaksh3137]

Yes

[@PawanSingh-wy8sm]

Vo sab thika hai per 100 - 3 nahi 100 - 1 hoga☺️

[@shadowgodz_bs7459]

Mam why can't we use identity 7

[@Floran5839]

Mam apna 3rd part ma identity (a+b)³ kyu lagai vaha to (a-b)³ vali lagni cahiya thi

[@Madebyvaishnavi]

Yo Yo mam good teaching!!!!!! 🤗🤗

[@insane4371]

Like you guru teaching so good better than everyone but we put lakhs of money to SCHOOL
So ur our principal of like us popers

[@subeenabhat3828]

Your teaching is understand

[@Kittu_5546]

Mam ne galti se (a+b)³ ki identity use kar di hai but (a-b)³isi ldenty se solve hai question 😂

[@뉴진스15]

BOTH TECHNIQUES ARE CORRECT.
CALCULATE THE THE SUM BY BOTH EQUATIONS ARE SAME
(FOR THOSE PEOPLE WHICH HAVE DOUBTS)

[@jemes789]

No.

[@jemes789]

One I will use is formula in my copy question is( 999)
Evaute and my wrong method my sir say this I will confuse

[@뉴진스15]

EASY FORMULA IN (999) IS 1000-1 .
YOU CAN ALSO USE THIS FORMULA IN EQUATION 999 . THIS FORMULA IS EASY.

[@뉴진스15]

@@jemes789 (999) square
Ans :- ( 1000 - 1 )square
Using identity ( a - b ) square = a square - 2 ab + b square =
=> 1000000 - 2000 + 1
=> 998001 ans
Hope this question help you 😊

[@jemes789]

Thanks🥀

[@mohd.khalid3930]

All of best for your tomorrow exam😊😘😘

[@brown_gaming6162]

Mam in first sum (a+b)cube nahi (a-b)Cube vali identity ayaa gi

[@suriking9350]

🙏🙏🙏🙏 థాంక్సmedam👌👌 ❤🌹

[@Varun-x3m]

Thank you mam ❤️🎉 you are very interested and intelligent teacher I must god bless you always 🎉❤😊

[@adityabhai4297]

Thanks u soo much mam ap biology bhi padai pls mam😘

[@j__shot__gamer]

Lot of thank you mam 👌

[@shimlasharma8584]

Ham hundred plus 9 vi likh sakte hain per exercise 2.5 mein

[@janvisethi9743]

@@shimlasharma8584 how can you write 100 + 9 because 100 + 9 is 109
And in the question we need 99 so we have to do 100-1

[@AkshayKumar-sm8ly]

Mam iii part me (x-y)3 identity nhi lgegi kya🙄

[@anij336]

👍✨✨✨
🎉😊👏😁👏😃🎉
Congratulations!

[@time_pass125]

@@anij336 for what..

[@jagatshing306]

yhi to h ji

[@ninjaeditz7263]

Same hai bro

[@soniachhibber6897]

Same h

[@CHANDRAPRAKASH-ib3nn]

Thank you very much ☺️mam

[@Deepikathakur-shorts]

Thanku so much mam today us my exam and i am very confused but you are help me thanku so much mam😊

[@Mr.mysterious547]

Mam (i) bale me bodmas ke according to phele bracket solve hona chaiye na fhir aap ne us ko phele multiple kyu kiya🙄. Please answer me

[@angelandfairy829]

Bracket ka matlab multiply hii hota h😒

[@Mr.mysterious547]

@@angelandfairy829 me bracket se multiply kyu kiya ye nhi ke rha hu bodmas ke according phele bracket ke andar ka solve hota hn🤨

[@ai1media228]

Ma'am you teach style is very good thank you so much ma'am...

[@aniketpatel34997]

I got in my meinMaths subject 40 out of 38 just because of you I didn't go any coaching

[@Its_vidhiii_56]

Its 38 out of 40

[@ss-te7np]

Mam ek or formula hota h - ke liye usme minus ho tha h ar bare + hi kyu 😭😭😭😅

[@sonalirajput9086]

Ma'am aapne (a+b)^3 kyu lagaya (a-b)^3 kyu nhi lagaya 🤔🤔🤔🤔🤔🤔🤔🤔🤔🤔🤔🤔🤔🤔🤔🤔🤔🤔🤔🤔🧐

[@seemamaurya1866]

Yes mam

[@beautiloversAnjali]

Yes

[@keshawatidhanavath9191]

Because hum formula ki change nhi kar sakte

[@manjujangra9603]

Because it doesn't matter we can write it in bracket

[@kush_universe]

Bhai sahi bat h

[@damanpreetkaurjhajj4068]

Thanks mam😊😁

[@Thunder_Crack]

Ma'am A cube-B cube=a^3-b^3-3ab(a-b)

[@lakhvirsingh9119]

You are best mam 👍🏻👍🏻

[@mohdshadan1538]

Thanks mam

[@chandramohanmalviya7963]

Mam ya jo questions hai bo so - subtract ke hai aap ne aadition bale formula se karaya hai

[@balwannai]

All the best my today exam😊😊😊

[@shikarjaiswal536]

Thanku maam you are the best teacher ❤

[@Anks1278]

Yaar kal exam hai ye exercise bohot hard hai😰😓😓

[@namangoyal1079]

Mam is sum ke ander
(a+b)³ ka jangha (a+b)³ use kyu ni kiya 1st part me

[@shubhamffgaming3691]

Mam you can use (a-b)hole cube

[@aroravaishnvi2278]

Yes , i want to ask the same thing, why is she not using minus formula..did the same in que 6..can we use + formula instead of minus? Bcz ans is same with both the signs

[@shubhamffgaming3691]

Yess I am also saying the same and we can use the both signs

[@sakshichoudhary985]

Thank you mam for uploading this vedio

[@AnandRaj-x5d]

Math class 9 easy understand your video thanks 🙏 mam 😊

[@indgaming5405]

Thanks mam you are revise the polynomial chapter

[@rudrabhaigaming6747]

Mam please live classes kejiye class 9 th ke chapter 3 ki

[@satishud2843]

Thanks mam I understand fully

[@amanvishwakarma9861]

Thank u maam🎉🎉😊

[@nikesharma1979]

Thanks mam I can't do without your video

[@pritisworld2295]

In every subject mostly magnet brain is bettet than others in maths you are the best👍👍👍👍

[@jayshejul2040]

Mam you're teaching is superb 👌

[@DeepaK-tc5mx]

Thanks for saving our toution fee ma'am

[@SunilGupta-g4e]

Mam jo 7th question ka 2 part hai uska answer galat a rha hai app ka uska answer 1007208ans hai
And your explanation is very great mam 😊

[@Budhram_Meena00]

Mam please teach with black board please please please please please please please please please please please please please please please please please please please please please please please please

[@Budhram_Meena00]

Yes mam

[@Budhram_Meena00]

Yes mam

[@gourikasharma1943]

In the first question there will use of identity ( A -- B) hole cube 😮

[@gourikasharma1943]

Because there is (1000--1)

[@rammeherpal5045]

Today is my exam so i am watching this night 2:00a.m

[@anshugaming4764]

99 people watching this video before exam

[@mr.pavankhobe3362]

Mam in my school sir Is given
(A+B)^3 = (A+B)^2 (A+B)

[@dhanikizubaani3374]

Mam but isme (a-b) cube wali identity bhi lag sakti hai na

[@tejas-fq5qz]

Yes you can use this identity also

[@arpitmeena3848]

Yes sure ☺️

[@sehajchitkara]

Yes bro

[@cutekhushi9799]

Your explanation. is ...veryyy nice😊.....you are great mam...... thank you 😌🙃

[@daraashiq8229]

Thanks so so so much

[@nirmalakhatoi6872]

Thank you so much mam

[@living_tothefullest]

Mam yahan pe x- y³ formula kyun use nhi kiya

[@amandarkdragon3806]

Vahi to

[@amandarkdragon3806]

🧐🧐

[@ChoteRajaOfficial]

Mam vaha 1st Question me (100-1) he to (a-b)³ nhi ho sakta kya
Aapne to (a+b)³ Kara he

[@hafsasworld8670]

Ma'am can I take 90+9 and use indentity 6.....?

[@pikachugaming8070]

Fir vo bhut difficult hojata h 100 se krne s jyada easy rhega mam n 2.5 k question 2 ki video m btaya tha kr to skte h pr 100 se jyada easy rhega

[@IamKaistar]

90+9 is not a easy way to solve
You should do (100-1) She also said that we should take 100 because it makes question easier

[@reynaa1876]

that will be difficult to solve

[@mannesrilatha1490]

didi am watching u r videos from 7th class i really missed u sooooooo much didi....
thank you for making your own youtube channel