Question

What is the sum of 3x^3-2x+8,2x^2+5x,and x^3+2x^2-3x-3

Answer 1

4x³ + 4x² + 5

Explanation:

3x³ - 2x + 8 + 2x² + 5x + x³ + 2x² - 3x - 3.

4x³ - 2x + 8 + 2x² + 5x + 2x² - 3x - 3

4x³ + 4x² - 2x + 8 + 5x - 3x - 3

4x³ + 4x² + 8 - 3

4x³ + 4x² + 5