解方程:2(x-3)≤9-(x+12)
解方程:2(x-3)≤9-(x+12)
解方程x^2-12x+3
解方程:2x(x-1)-x(3x+2)=-x(x+2)-12
解方程:(x-2)(x^2-6x-9)=x(x-5)(x-3)
解方程:3x^4-2x^3-9x^2+12x-4=0
解方程{3X+X+2X=12}
解方程{3X×X×2X=12}
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(x-2)X(x的平方-6x-9)=x(x-5)X(x-3)
解方程(x^2+3x)/(2x^2+2X-8)+(x^2+x-4)/(3x^2+9X)=11/12