How do you factor $2v^3-54$ ?

Question

1158 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2016-06-19T13:05:55

$2(v-3)(v^2+3v+9)$

First you can factor:

$2(v^3-27)$

then, because of the known identity:

$a^3-b^3=(a-b)(a^2+ab+b^2)$ ,

you find:

$2(v^3-27)=2(v-3)(v^2+3v+9)$

How do you factor 2v^3-542v^3-54?