Factor by any method. See Examples 1–7. $(2y-1{)}^2-4(2y-1)+4$

Factor by any method. See Examples 1–7. x²+xy-5x-5y

Factor by any method. See Examples 1–7. p⁴(m-2n)+q(m-2n)

In Exercises 93–102, factor and simplify each algebraic expression. (x+5)^−1/2−(x+5)^−3/2