Question

接下列分式方程x-2/x+5-3/x=1

Answer 1

1) x-2/x+5-3/x=1

x-2/x-3/x+5-1=0

x+4-5/x=0

x²+4x-5=0

(x+5)(x-1)=0

x1=-5

x2=1

2) (x-2)/(x+5)-3/x=1

x(x-2)-3(x+5)=x(x+5)

x²-2x-3x-15=x²+5x

x²-2x-3x-x²-5x=15

-10x=15

x=-1.5

3) .