10(x+2)+x+138=[10x+(x+2)]^2
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10(x+2)+x+138=[10x+(x+2)]^210(x+2)+x+138=[10x+(x+2)]^210(x+2)+x+138=[10x+(x+2)]^210(x+2)+x+138=[10x+
10(x+2)+x+138=[10x+(x+2)]^2
10(x+2)+x+138=[10x+(x+2)]^2
10(x+2)+x+138=[10x+(x+2)]^2
10(x+2)+x+138=[10x+(x+2)]^2
10x+20+x+138=(11x+2)^2
11x+2+156=(11x+2)^2
(11x+2)^2-(11x+2)-156=0
(11x+2-13)(11x+2-12)=0
(11x-11)(11x-10)=0
(x-1)(11x-10)=0
x=1或x=10/11
(x+12)(x-2)+(x+7)(x+8)-(x+5)(x-10),其中x=2
解方程(x/x(x+2))+(x/(x+2)(x+4))+.+x/(x+8)(x+10)=1
X+X+X+(X-1)+(X-2)+(X-3)+(X-4)=10(X-3)+(X-4)
x^2+10x( )=(x+ )^2
x^2-10x=2-x
2x×x=10,求x
x+2x×10=10x+2x+36
x+2x+(x+10)=90,x=?
10x -6.2x-2x=36 x=?
x-10+X+20+X/2+2X=370
x+10+x-20+2x+x/2=370
填空:(x+5)(x+?)=x^2+7x+10
1+x+x^2+x^3+x^4+x^5+x^6+x^7+x^8+x^9+x^10+x^11+x^12=97.8x+x^2+x^3+x^4+x^5+x^6+x^7+x^8+x^9+x^10+x^11+x^12=97.8 好多年没有用过过数学公式了 想不起来怎么算了 想知道 X值是多少
已知x=2π+1求 |x-1|+|x-2|+|x-3|+|x-4|+|x-5|+|x-6|+|x-7|+|x-8|+|x-9|+|x-10|
已知x=2π+1.求(X-1)+(X-2)+(X-3)+(X-4)+(X-5)+(X-6)+(X-7)+(X-8)+(X-9)+(X-10)
1+x+x^2+x^3+x^4+x^5+x^6+x^7+x^8+x^9+x^10+x^11=17.7这个方程怎么样求解?
10x-x^2=600 x=?10x-x^2=600 x=?
100(X - 2) + 10X + 2X = 100*2X + 10X + X - 2 - 495