Question

сократите дробь х+2/х^2+7х+10
сократите дробь х+2/х^2+7х+10
даю 20 б

Answer 1

(x+2)/(x²+7x+10)=(x+2)/(x²+2x+5x+10)=
(x+2)/(x(x+2)+(5(x+2))=
(x+2)/(x+2)(x+5)=1/(x+5)