1/2:x=1/3:1/4 0.5:0.6=x:1/8 2.4:1.2=2/5:x 解方程
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![1/2:x=1/3:1/4 0.5:0.6=x:1/8 2.4:1.2=2/5:x 解方程](/uploads/image/z/991312-16-2.jpg?t=1%2F2%3Ax%3D1%2F3%3A1%2F4+0.5%3A0.6%3Dx%3A1%2F8+2.4%3A1.2%3D2%2F5%3Ax+%E8%A7%A3%E6%96%B9%E7%A8%8B)
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1/2:x=1/3:1/4 0.5:0.6=x:1/8 2.4:1.2=2/5:x 解方程
1/2:x=1/3:1/4 0.5:0.6=x:1/8 2.4:1.2=2/5:x 解方程
1/2:x=1/3:1/4 0.5:0.6=x:1/8 2.4:1.2=2/5:x 解方程
1/2:x=1/3:1/4; 1/3x=1/2*1/4; x=3/8; 0.5:0.6=x:1/8 ; 0.6x=0.5*1/8; 3/5x=1/2*1/8; x=1/16*5/3; x=5/48; 2.4:1.2=2/5:x; 2.4x=1.2*2/5; 2.4x=2.4/5; x=1/5
一个“整式的乘法”的问题请先阅读下列解题过程,再仿做下面的问题.已知X*X + X - 1=0,求X*X*X + 2*X*X + 3的值.解X*X*X + 2X*X +3=X*X*X +X*X -X +X*X +X +3=X{X*X +X -1} +X*X +X -1 +4=0+0+4=4+ x + X*X + X*X*X=0.+ X*X + X*X*X
*-----------------------------------------------*| 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 ||
(x+2)(x-1)+(x+3)(x+1)=x·x-1 求x (5x-4)(2x+5)(3x-6)(2x-4)=(2x-4)(2x+5)·0.5 求x
(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
X+X+X+(X-1)+(X-2)+(X-3)+(X-4)=10(X-3)+(X-4)
x+2/x+1-x+4/x+3=x+6/x+5-x+8/x+7 x=?
x^4+x^3+x^2+x+1=0,x^2006+x^2005+x^2004+x^2003+x^2002
写过程x(x-1)+2x(x+1)-3x(2x-5)-x(3x-2)+2x(2-x)=-5x(x-2)-4
已知1+x+x^2+x^3+x^4+.+x^4=0.求多项式1+x+x^2+x^3+.+x^1989
(X-4)(x-2)-2(X-1)(X+3)其中X=-0.5
12x-2/21x=快点9点之前还有7x-x+2/3x-3(4x-0.5)-2x+(3x-1)-(x+5)
已知1/√(x)+√(x)=√5,求√(x/x2+x+1)+√(x/x2-x+1)的值定义域 x>0,两边平方,x+2+1/x=5,x+1/x=3,x^2-3x+1=0,x^2+x+1-4x=0,x^2+x+1=4x,x^2-x+1-2x=0.x^2-x+1=2x,√[x/(x^2+x+1)]-√[x/(x^2-x+1)]=√[x/(4x)]-√[x/2x]=√(1/4)-√(1/2)
(x+1)(x+2)(x+3)(x+4)=24
(x-1)(x-2)(x-3)(x-4)=48
(x+1)(x+2)(x+3)(x+4)=24
x-1+x+2+x/3+4x=77
解方程(x+1/x-1)+(x-2/x+2)+(x-3/x+3)+(x+4/x-4)=4