Question

Which expression is equivalent to (7h^2-7h+5)-(10h^2-3h+6)?

1. -3h²-4h-1
2. -3h²-10h+11
3. 17h²-4h-1
4. 17h²-10h+11

Answer 1

`-3h^2-4h-1`

Explanation:

To simplify the expression you first get rid of the parentheses and combine like terms

`-7h^2-7h+5-10h^2+3h-6`

`(7h^2-10h^2)+(-7h+3h)+(5-6)`

`-3h^2-4h-1`