Factor each polynomial. See Example 7. 9(a-4)²+30(a-4)+25

In Exercises 65–92, factor completely, or state that the polynomial is prime. x²−10x+25−36y²

Factor each polynomial. See Example 7. 4(5x+7)²+12(5x+7)+9

Factor each polynomial. See Example 7. (a+1)³+27

Factor each polynomial. See Example 7. (3x+4)³-1

In Exercises 65–92, factor completely, or state that the polynomial is prime. x²y−16y+32−2x²

Factor completely, or state that the polynomial is prime. $15x^3+3x^2$

Factor completely, or state that the polynomial is prime. $x^2-11x+28$