Question

How do you factor `5v^4+20v^2-2v^2-8`?

Answer 1

`(5v^2 - 2)(v^2 + 4)`

Explanation:

`5v^2(v^2 + 4) - 2(v^2 + 4) = (5v^2 - 2)(v^2 + 4)`