Question

How do you simplify `(8x ^ { 2} + 10x - 7) +( x ^ { 2} - 4x + 2)`?

Answer 1

`9x^2+6x-5`

Explanation:

`(8x^2+10x-7)+(x^2-4x+2)`

Open the brackets and group the common terms, keeping the signs.

`8x^2+10x-7+x^2-4x+2`

`8x^2+x^2+10x-4x-7+2`

Add or subtract the common terms.

`9x^2+6x-5`