Factor by any method. See Examples 1–7. 4z²+28z+49

Factor and simplify each algebraic expression. $-8(4x + 3)^{-2} + 10(5x + 1)(4x + 3)^{-1}$

In Exercises 103–114, factor completely. 6x⁴+35x²−6

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

Factor and simplify each algebraic expression.$[12x^{-\frac{1}{2}}+6x^{-\frac{3}{2}}]$

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