Question

What will be the answer of a2 (a square) - a - 12

Answer 1

Answer:

$\huge \underbrace \mathfrak \red{Solution࿐꧂}$

${a}^{2} - a - 12$

${a }^{2} - 4a + 3a - 12$

$a(a - 4) + 3(a - 4)$

$(a - 4)(a + 3)$

$a = 4$

$a = - 3$

Answer 2

Step-by-step explanation:

${a}^{2} - a - 12 \: \: \: \: \: \: \: \: \: \: \: \: \: \\ {a}^{2} - 4a + 3a - 12 \: \\ \: a(a - 4) + 3(a - 4) \\ (a - 4)(a + 3) \: \: \: \: \: \: \: \: \: \\ a = 4 \: and \: a = - 3$