Question

solve the following quadratic equation a²-a-2​

Answer 1

Answer:

a=23

Step-by-step explanation:

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Answer 2

$\star\bold\red{Answer:-}$

$\implies$${a}^{2} - a - 2 = 0$

$\implies$${a}^{2} -2a - a -2 = 0$

$\implies$$a(a-2) -1(a+2) = 0$

$\implies$$(a-1) (a-2) (a+2) = 0$

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$a - 1 = 0$

$a = 1$

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$a - 2 = 0$

$a = 2$

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$a + 2 = 0$

$a = -2$