Question

How do you simplify `(2xˆ2-8x+1)+(9xˆ2+4x-1)`?

Answer 1

`=11x^2 -4x`

Explanation:

`(2x^2−8x+1)+(9x^2+4x−1)`

Grouping like terms

`=color(blue)((2x^2 +9x^2)) + color(green)((-8x +4x)) + (1-1)`
`=color(blue)((11x^2)) - color(green)((4x)) + 0`

`=11x^2 -4x`