Question

. What is the sum of −5x^2 + 8x – 3 and 6x^2 − 4x + 9 ?

Answer 1

x^2+4x+6

Explanation:

-5x^2+6x^2+8x-4x-3+9

=x^2+4x+6

Answer 2

x² + 4x + 6

Explanation:

- 5x² + 8x - 3 + 6x² - 4x + 9 ← collect like terms

= (- 5x² + 6x²) + (8x - 4x) + (- 3 + 9)

= x² + 4x + 6