Question

х^2+9х+14
____________ Сократите дробь
х^2-49

Answer 1

x²+9x+14/x²-49

x²+7x+2x+14/(x-7)(x+7)

x*(x+7)+2(x+7)/(x-7)*(x+7)

(x+2)*(x+7)/(x-7)*(x+7)

Сокращаем на x+7

x+2/x-7