Question

Divide 3x^3 - 2x^2 - 61x - 20 by x - 5.

3x^2 + 13x + 4
3x^2 - 13x + 4
3x^2 - 17x + 24 R 100
3x^2 + 17x - 24 R 100

Answer 1

3x² + 13x + 4

Explanation:

3x³ - 2x² - 61x - 20

3x³ - 15x² + 13x² - 65x + 4x - 20

[3x²(x - 5) + 13x(x - 5) + 4(x - 5)]/(x-5)

3x² + 13x + 4