解方程:1.3x^2=9 2.√x-7=3
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4x^2+2x√(3x^+x)+x-9=0
解方程:1.3x^2=9 2.√x-7=3
解方程:2(X-3)(X+5)=X平方+(X+2)(X-2)+(X+7)
解方程:(x-2)(x^2-6x-9)=x(x-5)(x-3)
解方程:7x-2x+3x=36
解方程7x-2x+3x=36
解分式方程 x-7/x-9+x-3/x-5=x-4/x-6+x-6/x-8
解方程:x/(x-2)+(x-9)/(x-7)=(x+1)/(x-1)+(x-8)/(x-6)
解方程(3x^2+9x+7)/(x+1)-(2x^2+4x-3)/(x-1)-(x^3+x+1)/(x^2-1)=0