解方程：(1) (x²-5x)/(x+1)+24(x+1)/x(x-5)+14=0；(2).2(x²+1)/(x+1)+6(x+1)/(x²+1)=7；(3)(x⁴+2x+1)/x²+(x²+1)/x=2 .(1) (x²-5x)/(x+1)+24(x+1)/x(x-5)+14=0用x(x+1)(x-5)乘方...