Question

Choose the correct product of (3x − 8)^2
9x^2 − 64
9x^2 + 64
9x^2 − 48x + 64
9x^2 + 48x + 64

Answer 1

3*3=?
8*8=?

Answer 2

9 and 64

Answer 3

so with what they said, you end up with....
9 x^2-48 x+64

Answer 4

u know formula (a-b)^2=(a^2)-(2*a*b)+(b^2)
so( 3x-8)^2=((3x)^2)-(2*3x*8)+(8^2)
=(9x^2)-48x+64 option C

Answer 5

Wait it's the (a+b)^2 formula? My bad..
(3-8)^2=(3x)^2-2(3)(8)+(8)^2
9x^2-48+64

Answer 6

http://statisticslectures.com/images/trinomial11.gif

Answer 7

Its okay :P

Answer 8

wait ....so it's
9x^2 − 48x + 64
..?

Answer 9

Yeah