anonymous
  • anonymous
(4x-3y)^2 simplify
Mathematics
jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
16x²+9y²-24xy I think
anonymous
  • anonymous
Do I start by using the FOIL method? (4x-3y) (4x-3y)
anonymous
  • anonymous
That's what I did @Buster14

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anonymous
  • anonymous
Okay. Thank you for your help. It's been a long time since I've used the FOIL method. I'm working on solving it...slowly but surely. I'll let you know if I come up with the same answer as yours.
anonymous
  • anonymous
I just learned this if you still need help I can, but I don't use the foil method I don't think
anonymous
  • anonymous
I got a different answer: 16x^2 + 9y^2
anonymous
  • anonymous
let me see what I got
anonymous
  • anonymous
Use Square of Difference: (a−b)2=a2−2ab+b2 (4x)2−2×4x×3y+(3y)2
anonymous
  • anonymous
That's what that is called ^
anonymous
  • anonymous
Use Distributive Property (Multiplication): (xy)a=xaya 42x2−2×4x×3y+(3y)2
anonymous
  • anonymous
Simplify 42 to 16 16x2−2×4x×3y+(3y)2
anonymous
  • anonymous
yeah you can distribute if you change the problem to (4x - 3y)(4x - 3y)
anonymous
  • anonymous
@Buster14 You forgot the O and the I in FOIL
anonymous
  • anonymous
Use Distributive Property (Multiplication): (xy)a=xaya 16x2−2×4x×3y+32y2
anonymous
  • anonymous
Simplify 32 to 9 16x2−2×4x×3y+9y2
anonymous
  • anonymous
Simplify 2×4x×3y to 24xy 16x2−24xy+9y2 Done :D
anonymous
  • anonymous
live help not a calculator lolol plus kinda confusing to read
anonymous
  • anonymous
I am a calculator :)
anonymous
  • anonymous
@Pax Snap...the O is very important. I will work it again.
anonymous
  • anonymous
@Buster14 And the I too, but since it is a perfect square binomial the O and the I should be the same
anonymous
  • anonymous
@Thesmarterone I will try your method as well. Can't go wrong when using a calculator. @KaylaIsBae I'm working on your way too. Thank you all so much! I have a huge test tomorrow!
anonymous
  • anonymous
okay you're welcome :)
anonymous
  • anonymous
@Thesmarterone I think your way is confusing...2 many steps!
anonymous
  • anonymous
(a - b)^2 = a^2 - 2ab - b^2 I believe that is what I used in my school lesson
anonymous
  • anonymous
Well, after all, it is the hard way :L
anonymous
  • anonymous
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anonymous
  • anonymous
What school do you do
butterflydreamer
  • butterflydreamer
@KaylaIsBae , the formula is (a - b )^2 = a^2 - 2ab + b^2 :)
anonymous
  • anonymous
@KaylaIsBae Nursing, I'm taking the TEAS test tomorrow. Thanks for the visual formula, so helpful. I understand it now!

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