Answer:
The answer to your question is 3x(x² + 7)
Step-by-step 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)
