How do you factor $2ab^4 - 4a^2b^3$ ?

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Answer 1 · 2015-05-05T16:19:09

$2ab^4-4a^2b^3$

Examining both terms we can see the common factors:
$2$ , $a$ , and $b^3$

So we can write
$2ab^4-4a^2b^3 = (2ab^3)(b-2a)$

How do you factor 2ab^4 - 4a^2b^32ab^4 - 4a^2b^3?