16x加11(17-x)=222解放陈
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x方+17=8xx方-8x+16=-1(x-4)方=-1
x加12.5x=7.213.5X=7.2X=7.2/13.5X=5.33再问:不是循环小数么再答:是啊后面是3循环
x²+4x+8=2x+11x²+2x=3x²+2x+1=3+1=4(x+1)²=(±2)²x+1=±x=-1±2x=-3,x=1
x+4x=205x=20x=20÷5x=4
5.5x=11/17x=2/17再答:采纳啊
4/7*x加x/2等于13/8*x加x/4等于164x/7﹢x/2=13x/8﹢x/4=16(4x×2)/(7×2)﹢(x×7)/(2×7)=13x/8﹢2x/8=168x/14﹢7x/14=15x/
X+1/4X=75,X=60
x平方加X平方分之一加X减X分之一=4(x²+1/x²-2)+(x-1/x)-2=0;(x-1/x)²+(x-1/x)-2=0;(x-1/x+2)(x-1/x-1)=0;
x²+5x+7=3x+11x²+2x+1=5(x+1)²=5x=根号5-1或x=-根号5-1
16×(14-x)+11x=194224-16x+11x=194-5x=194-224-5x=-30x=6
分类讨论:x>=3时,f(x)=x-3+x+3=2x-3
x^2-2x+y^2+8y+17=0(x-1)^2+(y+4)^2=0x=1;y=-4;
7x-17=4X+227x-4x=17+223x=39x=39÷3x=13
x²+4x+8=2x+11x²+2x-3=0x=﹙-2±√16﹚/2=-1±2x=1,x=-3x(x-4)=2-8xx²-4x+8x-2=0x²+4x-2=0x
(8x+4)/5=(11x+1)/(7+1)8x(8x+4)=5x(11x+1)64x+32=55x+59x+27=0x=-3
每个分式减去1(x-4-x+5)/(x-5)+(x-8-x+9)/(x-9)=(x-7-x+8)/(x-8)+(x-5-x+6)/(x-6)1/(x-5)+1/(x-9)=1/(x-8)+1/(x-6
2x=8x=46x+1.5x+11=7.5x+11=7.5*4+11=30+11=41
解方程x+2分之x-2-x的平方分之16=x-2分之x+2详细步骤加检验x+2分之x-2-x的平方分之16=x-2分之x+2解,得:(x-2)/(x+2)-(16/x^2)==(x+2)/(x-2)(
再答:望采纳,祝学习进步