Question

How do you factor `16x^4+40x^2y^2+25y^4`?

Answer 1

Refer to explanation

Explanation:

It is

`16x^4+40x^2y^2+25y^4=(4x^2)^2+2*(4x^2)(5y^2)+(5y^2)^2= (4x^2+5y^2)^2`