解方程:4(x-3)^2-9(2x+1)^2=0
解方程(3x^2+9x+7)/(x+1)-(2x^2+4x-3)/(x-1)-(x^3+x+1)/(x^2-1)=0
解方程:2/x^2+x+3/x^2-x-4/x^2-1=0
解方程4x^2+2x√(3x^+x)+x-9=0
解方程:(4/x-2)+(x-1/x-5x+6)+(2/3-x)=0
解方程 x(2x-4)+3x(x-1)=5x(x-3)+8
解方程】(x+8)/(x-3)-(x-9)/(x-4)=(x+7)/(x+8)-(x+2)/(x+3)
解方程:(x-8)/(x-3)-(x-9)/(x-4)=(x+7)/(x+8)-(x+2)/(x+3)
解方程:(x+3)/(x+2)-(x+5)/(x+4)=(x+7)/(x+6)-(x+9)/(x+8)
解方程:2x+4x+6x...+100x=1-(x+3x+5x+...+99x)
解方程 x+2/x+1+x+8/x+7=x+6/x+5+x+4/x+3
解方程x/(x-2)=2x/(x-3)+(1-x)/(x-5x+6)
解方程 (3x+1)(3x-1)=(x+2)(9x-4) 2(x-3)(x-2)-(x+3)²=(x-1)(x