Question

Subtract and simplify.

Answer 1

2y^2+4y-9 should be the answer

Answer 2

Answer:

Option D.

Step-by-step explanation:

The given expression is

$(-y^2-3y-5)-(-3y^2-7y+4)$

We need to find the simplified form of the given expression.

Using distributive property we get

$-y^2-3y-5-(-3y^2)-(-7y)-(4)$

$-y^2-3y-5+3y^2+7y-4$

On combining like terms we get

$(-y^2+3y^2)+(-3y+7y)+(-5-4)$

On further simplification we get

$2y^2+4y-9$

Therefore, the correct option is D.