Question

Subtract and simplify.

(−y2−3y−5)−(−3y2−7y+4)




2y2−10y+4

2y2−7y−9

−2y2−10y−1

2y2+4y−9

Answer 1

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

Answer 2

Option D.

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.