Question

xpand.
) (a +2)(a -1)​

Answer 1

Answer:

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Answer 2

Answer:

$(a + 2)(a - 1) \\ a(a - 1) + 2(a - 1) \\ {a}^{2} - a + 2a - 2 \\ {a}^{2} + a - 2 \: \: \: \: \: ans.........$