Question

How do you factor `16x^2 - 80y + 100y^2`?

Answer 1

Assuming the given expression was intended to be
`color(white)("XXX")16x^2-80color(red)(x)y+100y`
then it can be factored as
`(8x-20y)(2x-5y)`

Explanation:

The given expression has no legitimate factors.