5(1-x)^2=3.
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5(1-x)^2=3.5(1-x)^2=3.5(1-x)^2=3.
5(1-x)^2=3.
5(1-x)^2=3.
5(1-x)^2=3.
3道简单的分式方程,1.3/(1-x^) = 2/(1+2x+x) - 5/1-2x+x^2.5x/(x^+x-6) + (2x-5)/(x^-x-12) = (7x-10)/(x^-6x+8)3.(x+1)/(x+2) + (x+6)/(x+7) = (x+2)/(x+3) + (x+5)/(x+6)
1.(x*2-3x+3)/(x*2-3x+2)-(x*2-5x+7)/(x*2-5x+6)-1/(x*2-4x+3)2.1/x(x+1)+2/(x+1)(x+3)+3/(x+3)(x+6) 3.已知:x*2-3x+1=0,求x*2+1/x*2.
解方程x/(x-2)=2x/(x-3)+(1-x)/(x-5x+6)
x(x-2)-2x(x+1)-3x(x-5) 其中x=负½
(x-3/x-2)-(x-2/x-1)=(x-5/x4) -(x-4/x-3)
x(x+1)+(x+2)+(x+3)+(x+4)+(x+5) = 27求x
计算:1.6x-1/3x+2=5x-7/2x-5 2.2x/x-1=2/x+2=2 3.x-1/x+1-x/x-1=4/x²-1
f(x,-x)=x^2+2x,fx(x,-x)=5x+1,则fy(x,-x)=
1.f(x)=x(x^2+1/x+1/x^3) 2.f(x)=(e^x+Inx)/x 3.f(x)=sinx(cosx+2^x) 4.f(x)=5log2(2x+1)
x+2/x+1-x+4/x+3=x+6/x+5-x+8/x+7 x=?
已知x-x-1=0,证明.x=2x+1,x的五次方=5x+3.
写过程x(x-1)+2x(x+1)-3x(2x-5)-x(3x-2)+2x(2-x)=-5x(x-2)-4
1.x+9/x+8- x+10/x+9=x+6/x+5- x+7/x+6;2.x³+2/x²-x+1+ x³-9/x²+2x+4=2x-1;3.x-a-b/c+ x-b-c/a+ x-c-a/b=3.(空开的指另一个分式)第二题不用了。
*-----------------------------------------------*| 6 4 X | 8 X X | X X 5 || X X X | X X X | X 7 8 || X X X | X X X | X X X ||---------------+---------------+--------------- || X X X | X X X | 5 1 X || X X X | X 6 X | X X X || 8 X X | 3 5 X | 2 X X ||
2x(x-1)-x(2x-5)=15
5/x^2+x - 1/x^2-x=0
X-5+8*X=7*X-2*X-1
分式方程1.(3/x^2+2x)-(1/x^2-2x)=0 2.(x/x-3)=(x^1/x-1) 3.(x-3/x-2)+1=(3/2-x) 4.(2x+1/x^2+x)=(5/6x+6)5.3/2-1/3x-1=5/6x-2