Question

how do u factor 2x^3+16

Answer 1

Do you know any common factors that they have?

Answer 2

take 2 as a common factor so you have

\[2(x^3 + 8) \]

the brackets is the sum of 2 cubes... which can be factorised as



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