Question

x²-x-12. verification​

Answer 1

Answer:

HD as composed )))))))))

Answer 2

Answer:

$\sf{Explanation\:Required\:}\red\checkmark$

${x}^{2} - x - 12$

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

$x(x + 3) - 4(x + 3)$

$(x - 4)(x + 3)$

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$x - 4 = 0$

$x = 4$

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$x + 3 = 0$

$x = - 3$