Question

Which of the following is a factor of 2x3 – 2?

Answer 1

\[
2 x^3-2=2 (x-1)
\left(x^2+x+1\right)
\]

Answer 2

Use
\[
a^3- b^3 =(a-b)(a^2 + ab +b^2)
\]

Answer 3

Where are the following?