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:

Remove the parentheses and rewrite the expression as

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

Then we combine like terms

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

Simplify

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