I do O/Levels in 2025 and I have a Mathematics Mock Exam tomorrow and without referring my text books, I refer these videos. Your videos helped me so much. Keep up the good work!
People you wicked this a really nice way to learn/solve your indices problem and only 360 liked the vid while 24.6k of you people viewed what is think at least learn to be kind
6:36 i don't understand the factorising part like why can't you just do 5 to the power of 59 - 5 to the power of 57 which is just 5 to the power of 2? and how do you factorise it like i don't understand why it's(5 squared - 1)
That is because 5 to the power 59 subtract 5 to the power 57 is not equal to 5 to the power 2. This would be if they were divided. Try yourself. Is 2^5 - 2^3 = 2^2 ?
This is the wrong video but for the question you refer to you add the 1/3 and 1/3 to get 2/3. Then the coeffcients multiplied are just 4 x 1 = 4. So that answer is 4x^(2/3)
This course does not cover complex numbers so we are working with real numbers only. As such, you cannot square root a negative number. The square root of -5 is not 5i, it is actually root5 i.
I do O/Levels in 2025 and I have a Mathematics Mock Exam tomorrow and without referring my text books, I refer these videos. Your videos helped me so much. Keep up the good work!
How is it?did you pass?
People you wicked this a really nice way to learn/solve your indices problem and only 360 liked the vid while 24.6k of you people viewed what is think at least learn to be kind
Yeah only about 1% of people. At least you liked it I assume. Thanks for helping.
I don't usually comment on videos but I felt like I MUST SAY THANK YOU❤❤
This was quite easy to understand i liked the walkthrough process
6:36 i don't understand the factorising part like why can't you just do 5 to the power of 59 - 5 to the power of 57 which is just 5 to the power of 2? and how do you factorise it like i don't understand why it's(5 squared - 1)
That is because 5 to the power 59 subtract 5 to the power 57 is not equal to 5 to the power 2. This would be if they were divided.
Try yourself. Is 2^5 - 2^3 = 2^2 ?
Why is this so HARD
Wow thanks, amazing helped me a lot
Understood 😊
For the last question, does it mean I don’t need to worry about negative solutions if the denominator is an odd number?
Yes
At 8:50 why do you multiply by x^1/2
I cried during this tutorial ... why is it so hard😭
used to be me 4months ago. now this is one of the easiest subjects. just do a absurd amount of questions
@xqnack Just saw your comment saying "why is this so HARD," glad you got the hang of it.
@Oqwjiwjwk that’s the trick to maths. If it’s partial differential equations or mixed fractions. It’s the same method
Do you get given what you need to multiply by at the first step for the last two questions?
I don't think so, what would be the point if they are just telling us a step of the question? Good luck on your exam tomorrow, ive got it too lol
@@2_SS1a few hours now..good luck!
About the last question, do you mean the number for x (and x^5/3 and x^-1/3) can be negative but x^2/3 can not be a negative number?
It is just the idea that we don't need to dismiss any negative solutions. If there were a power 0.5 though we would.
@@1stClassMaths what about x^1/4 or x^1/6? does it mean x to the power of 1/even denominator will be positive?
We cannot have negative x values for those either :)
@@1stClassMaths thank you for confirmation, just want to make sure my concept is correct:) Btw your videos are really helpful, thank you again.
Is q2 not wrong because it’s 4x^1/3 multiplied by x^1/3 so shouldn’t u get 4x^2 and the 2/3??
This is the wrong video but for the question you refer to you add the 1/3 and 1/3 to get 2/3. Then the coeffcients multiplied are just 4 x 1 = 4.
So that answer is 4x^(2/3)
Actually you can square root a negative no., they are generally written in form of i. Such as root of -5 will be 5i
This course does not cover complex numbers so we are working with real numbers only. As such, you cannot square root a negative number.
The square root of -5 is not 5i, it is actually root5 i.
@@1stClassMathspurrr
@@1stClassMathsdevoured
@@1stClassMathsate that
thought this was gases but at least I managed to practice a-level maths
This is further maths gcse which is a different gcse to math
6:01