解方程:7x+√(9x^2+16x^2)=42
解方程:7x+√(9x^2+16x^2)=42
解方程:(x+3)/(x+2)-(x+5)/(x+4)=(x+7)/(x+6)-(x+9)/(x+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/(x-2)+(x-9)/(x-7)=(x+1)/(x-1)+(x-8)/(x-6)
解方程:2x(x-9x)+16=0
解方程4x^2+2x√(3x^+x)+x-9=0
解方程((13x-x^2)/(x+1))(x+(13-x)/(x+1))=42
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(x²-x+4)x-(x-1)(x²+2)=x+7
解方程 x(x+1)-x-9=0 x²-2x=224 x(x-2)=2(2-x) x²-(2(√2)