Question

What is the sum of (4x2 – 10x + 3) and (-6x2 + 10x + 12)

Answer 1

`(8 - 10x + 3) + ( - 12 + 10x + 12)`

`(11 - 10x) + (10x)`

`11 - 10x + 10x`

`= 11`

Answer 2

-2x² + 15

Explanation:

Step 1: Add like terms

4x² - 6x² = -2x²

-10x + 10x = 0

12 + 3 = 15

Step 2: Rewrite

-2x² + 15