Question

Explain the step-by-step process to simplifying the expression below. Include the simplified answer in your explanation.

(6x2 − 5) − (3x2 + x + 7)

Answer 1

To simplify the expression given you have to add the like terms

Answer 2

3x^2-x-12

Answer 3

To perform the operation you can multiply through by the negative sign so you have 6x^2 - 5 - 3x^2 - x - 7

Answer 4

6x^2 - 3x^2 = 3x^2
-5 - 7 = -12
Therefore: 3x^2 - x - 12