Question

How do you factor `2x^2y-4xy-30y`?

Answer 1

Factor `2x^2y-4xy-30y` .
Factor out the `2y`.
`2y(x^2-2x-15)`
Find 2 factors of -15 that, when added = -2 (3 and -5)
`2y(x+3)(x-5)`

Explanation:

Factor `2x^2-4xy-30y` .

Factor out the `2`.

`2(x^2-2xy-15y)`