Question

Factored completely, the expression 2y^2 + 12y-54 is equivalent to

a. 2(y + 9)(y - 3)
b. 2(y - 3)(y-9)
c. (y+ 6)(2y - 9)
d. (2y + 6)(y-9)​

Answer 1

The answer would be a.

Answer 2

1. Factor out the 2: 2(y^2+6y-27)
2. What numbers multiply to -27 and combine to 6: 9 and -3.
3. 2(y-3)(y+9).

So the answer is A.