Question

【解方程】x方-x分之2+x方+x分之3=x方-1分之4

Answer 1

2/x(x-1) +3/x(x+1) =4/(x+1)(x-1)

两边乘以x(x+1)(x-1)得

2(x+1)+3(x-1)=4x

2x+2+3x-3=4x

∴x=1

检验：x=1是增根

∴方程无解