# Math Help - factoring polynomials

1. ## factoring polynomials

I need to factor $(x^2-7x)^2 +16(x^2-7x)+60$

I attempted to write $u^2+16u+60$ since I recognized the polynomial was quadratic. However, this doesn't seem like it can factored this way. I'm not sure how to get started now.

I need to factor $(x^2-7x)^2 +16(x^2-7x)+60$
I attempted to write $u^2+16u+60$ since I recognized the polynomial was quadratic. However, this doesn't seem like it can factored this way. I'm not sure how to get started now.