x×0.56=30.8
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/02 19:17:41
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+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
(1)0.3x+13=25, 0.3x+13-13=25-13, &nb
(1)5(x+2)=2(2X+7)5x+10=4x+145x-4x=14-10x=4(2)0.6(x-0.4)+3.8=1.2x+0.560.6x-0.24+3.8=1.2x+0.56-0.56-0.
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=
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
33.8x-x=0.5632.8x=0.56x=0.56÷32.8x=56/3280x=7/410如果本题有什么不明白可以追问,再问:我是小学生诶,四年级
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=
x=0.04谢谢~~~~~再问:告诉我过程再答:好的~6x+8x=0.5614x=0.56x=0.56/14∴x=0.04采纳吧~~~再问:好的
3.8x-x=0.562.8x=0.56x=0.56÷2.8x=0.2
3.8x-x=0562.8x=0.56x=0.56/2.8x=0.2
再答:望采纳
3.8x-x=0.562.8x=0.56x=5.6/28x=0.2
0.6x-0.24+3.8=1.2x+0.560.6x=3.8-0.56-0.240.6x=3x=5
#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