Question

$(a + 2)(a - 1)|$
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Answer 1

Answer:

a² -a + 2a - 2

a² + a - 2 (is your answer)

Answer 2

Answer:

(a+2)(a-1)

=$({a}^{2} - 1 - 2 + 2a - 2) \\ = {a}^{2} + 2a - 5$

Hope it helps.