Solve x² - x - 12

Problem

$x^2 - x - 12$

Step-by-step solution

Find two numbers multiplying to $-12$ and adding to $-1$ .
Pair $(-4, 3)$ : $(-4)(3) = -12$ ✓, $-4 + 3 = -1$ ✓.
Factor: $(x - 4)(x + 3)$ .

Answer

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

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