Question

Factor 9x^3 + 18x^2 – x – 2

Answer 1

Given that

Factor out the common terms

Take out common term (x + 2)

 

Comments

(x + 2)(9x² - 1) = (x + 2)[ (3x)² - 1² ]

= (x + 2)(3x + 1)(3x - 1).

Therefore, The factor form of  9x³ + 18x² - x - 2 is (x + 2)(3x + 1)(3x - 1).