Question

Choose the correct simplification of the expression (−2x + 6y)(4x − 6y).

8x^2 + 36xy − 36y^2

−8x^2 − 36xy + 36y^2

−8x^2 + 36xy − 36y^2

−8x^2 + 12xy − 36y^2

Answer 1

(a+b)(c+d)=ad+ac+bc+bd

Answer 2

can you help me please

Answer 3

ok
a=-2x
b=6y
c=4x
d=-6y
use the above formula

Answer 4

is it the first one

Answer 5

yes

Answer 6

thought so thanks!

Answer 7

never mention

Answer 8

http://openstudy.com/study#/updates/50071f02e4b020a2b3bcbc74