解方程 4(x-2)-49=0 x-5x-7=0 (2x+1)乘(x-2)=3 2x-根号2 x-31=0
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解方程 4(x-2)-49=0 x-5x-7=0 (2x+1)乘(x-2)=3 2x-根号2 x-31=0
解方程 4(x-2)-49=0 x-5x-7=0 (2x+1)乘(x-2)=3 2x-根号2 x-31=0
解方程 4(x-2)-49=0 x-5x-7=0 (2x+1)乘(x-2)=3 2x-根号2 x-31=0
①原式=4(4x-16x+16)-49=0.(2x-4)方-49=0. (2x-11)(2x+3)=0.x=11/2.或x=-3/2
解方程;x/x-4=5x/x-2
解方程:(4/x-2)+(x-1/x-5x+6)+(2/3-x)=0
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5x(x+7)(x+4)=5x(x^2+11X)解方程,
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解方程:x(3x-4)+2x(x+7)=5x(x-7)+90
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解方程:(x-8)/(x-3)-(x-9)/(x-4)=(x+7)/(x+8)-(x+2)/(x+3)
解方程:4x^2-5x=6; 2x/(x+1)+(x+1)/x-3=0
解方程:-x(3x-2)+2x(2-x)=-5x(x-2)-4
x+4x+8=4x+11 x(2x-4)=5-8x解方程急!
解方程 x(2x-5)=4x-10 x+5x+7=3x+11
解分式方程(要带步骤)解方程:(1):2/(x-3)=3/x; (2):6/(1-x)-(x+5)/[x(1-x)]=0; (3):2/(3x-1)-1=3/(6x-2); (4):10x/(2x-1)+5/(1-2x)=2; (5):(x+2)²/x²-3(x+2)/x+2=0; (6)x/(x²-4)+2/(x+2)=1/(x-2); (7)5/(x²+x)-1/(x²-