Question

Сократите дробь:
х^2-3х-10/20-4х

Answer 1

$displaystyle frac{x^{2}-3x-10}{20-4x}= frac{(x+2)(x-5)}{4(5-x)}=- frac{(x+2)(x-5)}{4(x-5)}= -frac{x+2}{4}$