Question

(-5x^2+2x+6)-(9x^2+2x+9)+(-6x^2+5x-3) simplified

Answer 1

− 20 x ^2 + 5 x − 6

Explanation:

Answer 2

`-20x^2+5x-6\\`

Explanation:

Start by removing the grouping symbols (parentheses) using the sign rules:

`(-5x^2+2x+6)-(9x^2+2x+9)+(-6x^2+5x-3)=\\=-5x^2+2x+6-9x^2-2x-9-6x^2+5x-3`

Then we re-order and combine like terms:

`-5x^2+2x+6-9x^2-2x-9-6x^2+5x-3=\\=-5x^2-9x^2-6x^2+2x-2x+5x+6-9-3=\\=-20x^2+5x-6`