for the x ^2 - 2xy - y^2 it should really be a positive symbol for the y^2 making it x^2 - 2xy + y^2 like it was in the example beneath it (the 9 is positive). this is in the Barron's SAT book as well. Just a little mistake there. But thank you so much. My SAT is tomorrow and your videos are a wonderful and absoultely helpful review.
thanks for this video, it was super helpful. one question though, about the way you solved for the question at 6:45 if a^2+b^2 is the same as (a+b)(a+b) which is the same as (a+b)^2 then doesn't that make (a+b)^2 = 20 making 2 (a+b)^2 --> 2 (20) = 40?
For the very last question, in this video, to find the final answer, are you sure you would raise the power of the 12 by three, or would it be the square root 3 that you would need to get the answer?
You can use the Pascal triangle to figure out what (x+y)^x>2 so basically when x+y has an exponent greater than 2. look it up. pascal triangle quadratic trick lol
I cant believe that im in grade 8 in vietnam, but i have learned this and all the students grade 8 in vietname can do harder things than this exam......!!!!
God bless you my friend. Your channel is the best alternative to a $500 sat prep course. Thank you for your time bro.
+Kofi Ansah-Brew amen. This man saved my life
@1:58
The formula is x2 - 2xy + y2 = (x-y)2
This type of a question always tricked me up! Thank you for that formula!
@RadicalPrep
Your videos are really awesome !!
What are the topics that we should go through for the New SAT (for maths section) ?
Please Clarify me.
7:40 can't you say that a+b = -8 too. cuz -10 + 2 = -8 square it and it's 64
thanks really helped me.
for the x ^2 - 2xy - y^2 it should really be a positive symbol for the y^2 making it x^2 - 2xy + y^2 like it was in the example beneath it (the 9 is positive). this is in the Barron's SAT book as well. Just a little mistake there. But thank you so much. My SAT is tomorrow and your videos are a wonderful and absoultely helpful review.
taking the sat in 7 and a half hours fuck yeah man your videos rock
thanks for this video, it was super helpful.
one question though, about the way you solved for the question at 6:45
if a^2+b^2 is the same as (a+b)(a+b) which is the same as (a+b)^2 then doesn't that make (a+b)^2 = 20 making 2 (a+b)^2 --> 2 (20) = 40?
Couldn't a+b=-8 as well and same for the other being -6
at 2:12 its plus y^2 because its 2 negative y
I love you man!!! Thanks so much!!!
For the very last question, in this video, to find the final answer, are you sure you would raise the power of the 12 by three, or would it be the square root 3 that you would need to get the answer?
Chukwuemeka Chukwu ill have to look, i made these videos over 5 years ago, it's been a while, lol
Who is here because he has SAT exam on 29th of August??
YOUR A GOD
+kevork gamal you're* (English tip,you're welcome)
@@Goddessglow888 You are welcome.
English tip.
Never forget your periods.
You can use the Pascal triangle to figure out what (x+y)^x>2
so basically when x+y has an exponent greater than 2. look it up. pascal triangle quadratic trick lol
I noticed that too
thnak you so much
I cant believe that im in grade 8 in vietnam, but i have learned this and all the students grade 8 in vietname can do harder things than this exam......!!!!
NIce Pen
I better pass.