Question

Factor the polynomial expression 4x^3 – 4.

Answer 1

Explanation:

4x^3-4

=4(x^3-1)

=4[(x-1) (x^2+2x+1)

Answer 2

4(x-1)(x^2+x+1)

Explanation:

factor 4 out first= 4(x^3-1)

cubes formula: (a-b)(a^2+ab+b^2)