Factor and simplify each algebraic expression. $16x^{-\frac{3}{4}}+32x^{\frac{1}{4}}$

Factor by any method. See Examples 1–7. $q^2+6q+9-p^2$

Factor by any method. See Examples 1–7. 64+(3x+2)³

In Exercises 103–114, factor completely. x⁴−5x²y²+4y⁴

Factor by any method. See Examples 1–7. $(x+y{)}^3-(x-y{)}^3$

In Exercises 103–114, factor completely. (x+y)⁴−100(x+y)²

Factor by any method. See Examples 1–7. (3a+5)²-18(3a+5)+81