Please help me solve the below question. Thanks!

Question

Factor the polynomial or expression. (If a polynomial is irreducible, enter IRREDUCIBLE.)

4(x + h)^5 − 36(x + h)^3

Answer 1

4(x + h)⁵ - 36(x + h)³

4[(x + h)⁵ - 9(x + h)³]              GCF of 4 and 36

4(x + h)³[(x + h)² - 9]              Common Factor (x + h)³

4(x + h)³(x + h + 3)(x + h - 3) Difference of Squares