Question

8.
$x ^{2} - x - 156$
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Answer 1

Answer:

GIVES THAT :–

${x}^{2} - x - 156 = 0$

${x}^{2} - 13x + 12x - 156 = 0 \\ \\ x(x - 13) + 12(x - 13) = 0 \\ \\ (x + 12)(x - 13) = 0 \\ \\ x = - 12 \: </strong><strong>,</strong><strong>\: 13$

Answer 2

S O L U T I O N

$x {}^{2} - x - 156 = 0 \\ x {}^{2} - 13x + 12x - 156 = 0 \\ x(x - 13) + 12(x - 13) = 0 \\ (x + 12)(x - 13) = 0 \\ x = - 12 , 13$