Question

Factor the polynomial completely
3x³+21x​

Answer 1

The answer to your question is 3x(x² + 7)

Explanation:

Data

Polynomial 3x³ + 21x

Process

1.- Find the Greatest common factor of 3 and 21

3 21 3

1 7 7

1

Greatest common factor = 3

2.- Find the Greatest common factor between x³ and x

x³ x x

x² 1 x

x x

1

Greatest common factor = x

3.- Factor

3x(x² + 7)