Question

Factor a3 - 3 + 3a2 - a.

A) (a - 1)(a + 1)(a + 3)
B) (a 2 + 1)(a - 3)
C) (a 2 - 3)(a + 1)

Answer 1

A

Explanation:

a³ - 3 + 3a² - a

a² + 3a² - a - 3

a²(a + 3) - (a + 3)

(a + 3)(a² - 1)

(a + 3)(a - 1)(a + 1)

Answer 2

Explanation:

the correct answer is option (a)