Question

Add (7x^2+4x-1)+(2x^2-6x+2)

Answer 1

9x^2 - 2x + 1

Explanation:

- collect like terms

7x^2 + 2x^2 = 9x^2

4x -6x = -2x

-1 + 2 = 1

-put together

9x^2 -2x + 1