factoring polynomials

• September 20th 2009, 12:54 AM
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.
• September 20th 2009, 01:05 AM
mr fantastic
Quote:

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.