How do you factor 2x^2 - 40x?

1 Answer
Jul 12, 2016

2x(x-20)

Explanation:

Remember that factoring means to "take out" a common factor from each term, namely one from 2x^2 and one from 40x.

It happens to be the case that both, 2x^2 and 40x are divisible by 2, and both share an x, which means that we can take out a 2 as well as an x, giving us

2x^2 - 40x -> 2x(x-20)