{1-2(x-1)≤5 3x-2/2<x+1/2 的整数解
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x+2/x+1-x+3/x+2-x+4/x+3+x+5/x+4
x^5-x^4+x^3-x^2+x-1
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计算(x*x+4x+5)/(x+2)-(x*x+6x+10)/(x+3)+1
3≤|8-x| |x+1|>2-x |x+3|7|x+1| x^2-6|x|+9>0 |x-1|+|x+2|≥5 (1)方法
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x(x平方-1)+2X平方(X+1)-3X(2X-5)帮个忙
如下9*9宫图如何填x x x 1 x x x 2 9x x 5 x x x x x 4x 6 8 x x x x x xx x x 7 x x 5 x xx 2 x x 6 x x 8 xx x 3 x x 9 x x xx x x x 5 x 1 6 x 4 x x x 3 x x x x 7 x x x x 2 x x x
(x-3/x-2)-(x-2/x-1)=(x-5/x4) -(x-4/x-3)
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(x+1)+(x+2)+(x+3)+(x+4)+(x+5) = 27求x
请问这道题咋做 :(x)X (x+1) X (x+2) X (x+3) =360
1.-X^2+X≥3x+12.x(x+9)≤3(x-3)3.X^2-2x<2X^2+2解题格式一定要写好哦4.-x+1/2x+5≥05.(m-2)x>1-m6.X^2-(a-3)X-3a<07.X^2-(a+1/a)x+1>0