搜搜考试网600X 200Y=25000 X 600 Y 200=75
来源：学生作业帮助网 编辑：作业帮 时间：2024/06/11 23:34:09
600=1.2x-0.8x600=0.4xx=600/0.4x=1500
是这样的：x^5+x^4=x^3(x^2+x)=(x^2+x)[(x^3-1)+1]=(x^2+x)(x^3-1)+x^2+x=[x(x+1)(x-1)](x^2+x+1)+x^2+x=(x^3-x)
x(1+2+...+9)=x(9-8-7-...-1)x=0记得采纳啊
2X+20000=1.6X+250002x-1.6x=25000-200000.4x=5000x=12500
0.8X+600=1.2X0.8X-1.2X=-600-0.4X=-600X=1500
（X+X)+(X-X)+(X*X)+(X/X)=1002X+0+X*X+1=1002X+X*X=99X(X+2)=99X=9再问：请问X(X+2)=99解为什么就等于9了呢没看懂再答：换成算术法你就明
X+X+X+X+X+X+100X=1690106x=1690x=845/53
移项2X-1.6X=25000-200000.4X=5000X=12500
(x+10)[-10(x-60)]=10000(x+10)(x-60)=-1000x²-50x-600+1000=0x²-50x+400=0(x-10)(x-40)=0x=10,x
5X+45+55=6005X=500X=100X-0.52X=960.48X=96X=2004x+6x-2x=108X=10X=4/5(4分之5）4.5x+0.9X=0.545.4X=0.54X=0.
设x1=4-√3,x2=4+√3,是方程X^2-8X+13=0的两根所以X1^2-8X1+15=2X^4-6X^3-2X^2+18X+23=(X+1)^2*(X^2-8X+13)+10=10所以原式=
呃...的确是一元二次方程...(X-30)*[600-(X-40)*10]=10000(X-30)*(600-10X+400)=10000(X-30)*(1000-10X)=100001000X-1
当X=51a=51/10取整=5b=51/10取余=1X=10*1+5=15所以,运行结果为15
(x-22)+(x-24)+(x-27)+(x-20)=xx-22+x-24+x-27+x-20=x4x-93=x4x-x=933x=93x=31
x-x*0.05=6000.95X=600X=12000/19
x/x(x-1)+2=2x/(x+1)1/(x-1)+2=2x/(x+1)x+1+2(x-1)(x+1)=2x(x-1)x+1+2x²-2-2x²-2x=0-x-1=0-x=1x=
#includesintjiesheng(intn)//用于计算阶乘如：3!{if(n=1)rerunn;returnn*hh(n-1)}doubledigui(intn,intx)//用以计算y=x
2x等于x+15x等于15
10%+20%(1100-x)=20010%x+220-20%=200220-10%=20010%x=20x=200600x+1000(150-x)=100000600x+150000-1000x=1