Question

simplify
(a + 2)(a − 2)(a²+4)​

Answer 1

(a+2)(a-2)(a²-2²)

=(a²-2²)(a²-2²)

=(a²)²-(2²)²

=a²-16(answer)

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Answer 2

Step-by-step explanation:

here is your answer

$(a + b)(a - b) = {a}^{2} - {b}^{2}$

☆(a^2-4)(a^2+4)

===a^4-16