Question

(3) Factorise (a+2) (a-1)​

Answer 1

$\huge\mathfrak\red {Solution }$

→$(a + 2)(a - 1)$

→$a(a - 1)2(a - 1)$

→${a}^{2} - a + 2a - 2$

→${a}^{2} + a - 2$

Hence the answer is a^2 + a - 2

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