Question

a power5 - a power4 - 16a +16 ÷ a² + 4​

Answer 1

Step-by-step explanation:

a⁴(a-1)-16(a-1) / (a²+4)

(a-1)(a⁴-16) / (a²+4)

(a-1)(a²+4)(a²-4) / (a²+4)

(a-1)(a²-4)

(a-1)(a-2)(a+2)