Question

Сократите дробь:
$frac{5 x^{2} +x-4}{ x^{2} +x}$

Answer 1

5x²+x-4=0
D=1+80=81
x1=(-1-9)/10=-1
x2=(-1+9)/10=4/5
(5x²+x-4)=(x+1)(5x-4)/x(x+1)=(5x-4)/x