18X(736÷16÷27)等于多少
来源:学生作业帮助网 编辑:作业帮 时间:2024/09/20 02:20:38
原式=(x-3)^2)*[(x+3)/(x-3)(x-6)]=(x+3)(x-3)/(x-6)=(x^2-9)/(x-6)
递等计算:1、8/17×8+8/17÷8=64/17+8/17×1/8=64/17+1/17=65/17解方程:2/3x+3/5x=1219/15x=12x=12÷19/15x=12×15/19x=1
x+2绝对值+(y-3)的平方=0则x+2=0,y-3=0则x=-2,y=3则X的绝对值+2=2+2=4xy÷x平方-y的平方=-6÷4-9=-10又2分1
=(x^2-16)/(x+4)÷(x-4)/x=(x-4)*x/(x-4)=x
(x^2-6x+9)÷x^2-9x+18/x+3=(x-3)^2÷(x+3)(x-3)+18/(x+3)=(x-3)/(x+3)+18/(x+3)=(x+15)/(x+3)
3x/8y×16y²/27x²=2y/9x(2xy-x²)÷x-2y/xy=-x(x-2y)×xy/(x-2y)=-x²y2x-6/x²-4x+4×2
3x^3-3x^2-x^=3x^3-4x^2=x^2(3x-4)
你这题有没有弄错啊,我猜⑤应该是5X5X5=6吧如果是5X5X5=6简单说下思路,由①,要不1为0,要不5为1,又因为⑤,所以1为0由⑤,只能是5为2,6为8由③,基本只能是9为1由②,7和3只能为3
(x²-6x+9)÷x+3分之x²-9x+18,=(x²-6x+9)×(x+3)/(x²-9x+18)=(x-3)²(x+3)/[(x-3)(x-6)
=(x-3)²-6(x-3)=(x-3)(x-3-6)=(x-3)(x-9)
(1-1/5)X=16/254/5x=16/25x=4/5X+1/3X=1204/3x=120x=90X÷6/7=28/27÷18/15x=(28/27)×(15/18)×(6/7)x=20/27
再答:采纳哟
3x+16=5x+15x-3x=16-12x=15x=7.5
3x²-x-1=0x+1=3x²(2x-x+1分子x2-2x)÷x2-4x分子x2-16=[2x(x+1)-x²+2x]/(x+1)÷(x+4)(x-4)/x(x-4)=
(99+9)÷9+9=21√9+√9+√9+√9+9=219+9+9-√9-√9=219+9+9-9+√9=219×9÷9+9+√9=21答案很多,暂时给你这么多
8.5
原式=〖(x+2)/x(x-2)-(x-1)/(x-2)^2〗÷〖(x-4)(x+4)/x(x+4)〗=〖(x+2)(x-2)-(x-1)x〗/x(x-2)^2〗÷〖(x-4)(x+4)/x(x+4)
130%x+x=4.61.3x+x=4.62.3x=4.6x=2x÷50%=10x=10乘2x=20x/9-x/15=16%x(1/9-1/15)=16/100x(5/45-3/45)=4/25x=4