Question

Which of the following expressions is equivalent to

1/2y²(6x+2y+12x-2y)


A) 9xy²
B) 18xy
C) 3xy²+12x
D) 9xy²-2y³
E) 3xy²+12x-y³-2y

Answer 1

$\frac{1}{2}y^2 (6x + 2y+12x-2y)\\\\= \frac{1}{2}y^2 (18x)\\\\=9xy^2$

A) 9xy²

Answer 2

first what I do is take separate x's and y's inside the ( ) then I like to put the x's and y's off to the side so then if you take 6+12 you get 18 but you have to multiply by 1/2 or divide by two and you get 9 that means that the answer is A because one of the y's is + the other is -