解方程:(x²+x+1)/(x²+1)+(2x²+x+2)/(x²+x+1)=1
解方程(x²-x+4)x-(x-1)(x²+2)=x+7
解方程:(x²+x+1)/(x²+1)+(2x²+x+2)/(x²+x+1)=1
解方程:(x+1)(x²+x+1)-(x-1)(x²-x+1)=(4x+3)(x-2)
解方程①(x+3/x-1)²-5(x+3/x-1)+6=0 ②x²-2/x+3-6x+18/x
解方程:x(6-x)-2x(x+1)-(x^3-3x^4)/x²=4
解方程(x²-3x)/(x²-1)+(2x-1)/(x-1)=0
解方程x²+x²分之1+2(x-x分之1)=1
解方程:x(x+2)+(2x+1)(2x-1)=5(x²+3)
解方程:(2x÷x²-1)-1÷x²-x=0
(x+1)(2x-3)-(x-1)(x+2)=x²+7,解方程,
解方程:2(x-3)(x+1)=x²+(x-1)(x+2)
解方程:(x+1)(x-1)=x(2x+3)-(x-2)²