(7x-1)÷0.024=(1-2x)÷0.018-(5x+1)÷0.012解方程
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(7x-1)÷0.024=(1-2x)÷0.018-(5x+1)÷0.012解方程
(7x-1)÷0.024=(1-2x)÷0.018-(5x+1)÷0.012解方程
(7x-1)÷0.024=(1-2x)÷0.018-(5x+1)÷0.012解方程
(x²-x+1)÷(x²-x-1)=(x²+x)÷(x²+x-2)解方程
X^2-3X-2=0,求( x - 2x-1/x )÷(x-1)/(x^2-2x)
x/x-2+x-9/x-7=x+1/x-1+x-8/x-6,
x/x-2+x-9/x-7=x+1/x-1+x-8/x-6,
21分之10x÷3分之2=7分之3x-3分之1x-2分之1x=190x-53x=7408.5x-6.9x=43.3x-200=0.2x+1101.02+0.4x+2.6x=3.428.9x-67=4.5x+656x-58=3x+1410x-20=5x+806x+5=10x-3420-1.4x=9.8x-288.2x+5.4x=272
x-2/(x^2-9)(1+(2x-7/x^2-4x+4)÷(x+1)/(x+3)其中x=2010
先化简 再求值[(2x)²(x+1)²-3x²(x²+8/3x-1)-7x²]÷x³ 其中x=-2
x(2-1/x)+x/(x^2-2x)÷(3-x)/(x^2-4)2.2/3+x/(3x-1)=1/9x-3
*-----------------------------------------------*| 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 ||
当x=9/2时,求(x^2+7x+10)/(x^2+6x+5)×(x^3+1)/(x^2+4x+4)÷(x^2-x+1)/(x+2)
(x平方+7x+10)/(x平方+6x+5) × (x三次方+1)/(x平方+4x+4) ÷ (x平方-x+1)/x-2 其中,x=4.
填九宫格帮帮忙.x x 6 x x 7 x x 98 x x x 3 x 1 x x 9 x x 6 x 5 x 3 x x x 3 x x x x 1 8x x x 9 x 1 x x x2 1 x x x x 6 x x x 6 x 7 x 3 x x 1 x x 9 x 2 x x x 47 x x 8 x x 5 x x
x^2-1/x^2+x÷(x-2x-1/x),其中x=√2+1,
先化简再计算x²-1/x²+x÷{x-【2x-1/x】},其中X=根号2+1
先化简再计算x²-1/x²+x÷(x-(2x-1)/x),其中X=根号2+1
x=根号3时,代数式(x/x-1-x/x+1)÷2x/1-x的值是?
化简(x^2-2x+1)/(x^2+1)÷(x-1)/(x^2+x)-x
先化简再求值(x/x-2-x/x+2)÷4x/x-2,其中x=1