Question

Factorize a² + a - 72.
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Answer 1

Answer:

Hello mate✌✌✌

${a}^{2} + a - 72 \\ {a}^{2} + 9a - 8a - 72 \\ a(a + 9) - 8(a + 9) \\ (a - 8)(a - 9)$

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Answer 2

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a²+a-72 = 0

a²+9a-8a-72 =0

a(a+9)-8(a+9)=0

(a+9)(a-8) = 0

a = -9 , 8

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