Question

simplify:(a+2)(a-2)(a2+4)
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Answer 1

Step-by-step explanation:

(a+2)(a-2)(a²+4)

(a²-2a+2a-4)(a²+4)

(a²-4)(a²+4)

(a+b)(a-b) is (a²-b²)

So, answer is a⁴-16