Question

Х^2-7х-18
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Х^3+5х+7х+2

Answer 1

$\frac{x^2-7x-18}{x^3+5x^2+7x+2}= \frac{(x+2)(x-9)}{(x+2)(x^2+3x+1)}= \frac{x-9}{x^2+3x+1}$