3x^3+9x^2-54x

Question

which is one of its factors?

(x-3)

(x-6)

(x+3)

(3x-6)

Answer 1

3x³ + 9x² - 54x

 

 

Note that 3x is a common factor of the polynomial.

 

3x(x² + 3x - 18)

 

 

Factor completely using FOIL.

 

3x(x + 6)(x - 3)