解算式(-3x^2 y^3 z)^3÷9x^3 y^5·x^3·(-3x^2 y)^2解算式(-3x^2 y^3 z)^3 ÷ 9x^3 y^5 · x^3 ·(-3x^2 y) ^2

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解算式(-3x^2 y^3 z)^3÷9x^3 y^5·x^3·(-3x^2 y)^2解算式(-3x^2 y^3 z)^3 ÷ 9x^3 y^5 · x^3 ·(-3x^2 y) ^2
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解算式(-3x^2 y^3 z)^3÷9x^3 y^5·x^3·(-3x^2 y)^2解算式(-3x^2 y^3 z)^3 ÷ 9x^3 y^5 · x^3 ·(-3x^2 y) ^2
解算式(-3x^2 y^3 z)^3÷9x^3 y^5·x^3·(-3x^2 y)^2
解算式(-3x^2 y^3 z)^3 ÷ 9x^3 y^5 · x^3 ·(-3x^2 y) ^2

解算式(-3x^2 y^3 z)^3÷9x^3 y^5·x^3·(-3x^2 y)^2解算式(-3x^2 y^3 z)^3 ÷ 9x^3 y^5 · x^3 ·(-3x^2 y) ^2
-27乘以X的10次方y的6次方Z的3次方

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解算式(-3x^2 y^3 z)^3÷9x^3 y^5·x^3·(-3x^2 y)^2解算式(-3x^2 y^3 z)^3 ÷ 9x^3 y^5 · x^3 ·(-3x^2 y) ^2 解方程 x-2y+z/9=2x+y+3x/10=3x+2y-z/3=1 要算式和答案 已知3x=2y=5z≠0,求(x+2y+3z)÷(x-y+z)急具体算式、! 解方程 x+y+z=0 4x+2y+z=3 9x-3y+z=28解方程x+y+z=04x+2y+z=39x-3y+z=28 x+y+z+2,4x+2y+z+2,9x+3y+z=6解方程组 解方程组 x+y+z=5 2x-y-z=4 3x-2y-z=9 1.已知X:Y:Z=1:2:3,且3X-4Y+5Z=12,求解算式3X-5Y+Z的值. 问:3X-y+z=3 2X+y-3Z=11 X+y+ z=12 这个三元一次方程怎么做 打出来算式 X/10=Y/8=Z/9,则X+Y+Z/2Y-3Z 已知x-y/x+y=y+z/2(y-z)=z+x/3(z-x),求证8x+9y+5z=0THX.. 三元一次方程解 1.{x+y-z=5 {3x+2y+z=2 {2x-2y+z=-31.{x+y-z=5 2.{9x-5y+x=-6 3.{x-y=3 4.{x+y=3 5.{4x-2y+z=7{3x+2y+z=2 {9x+y-2z=3 {x+z=7 {y+z=4 {2x-y-3z=28{2x-2y+z=-3 {-9x+3y-5z=0 {y-z=6 {z+x=5 {x+y-2z=13 解三元一次方程组.速回.(1)X+Y+Z=25 X-Y=1 2X+Y-Z=18(2)X-Y-Z=0 X+Y-3Z=4 2X+3Y-5Z=14(3) X-2Y=-9 Y-Z=3 2Z+x=47(4)3X-y+z=4 2X+3Y-Z=12 X+Y+z=-28(5)4X+9Y=13 3y-2Z=-1 7X+5Z=17速回 我会奖励积分 解三元一次方程组!请写具体的过程!(1)2x+3y=10 (2)x:y=3:2 (3)4x-9z=17 (4)0.4x+0.3y-0.2z=45z+2z=6 y:z=5:4 3x+y+15z=18 0.6x-0.5y+0.3z=53y+5z=4 x+y+z=66 x+2y+3z=2 0.3x+0.2y+0.5z=22第一个错了!(1)2x+3y=10 5z+2x=63y+5z=4 解三元一次方程组 x+y+z=26 x-y+xz=1 2x-y+z=18 是x+y+z=26 x-y+2z=1 2x-y+z=18 刚刚发错了。x-y/2-9=y/3 3(x+y)=2(x+y)-2 matlab解对数方程组[x,y,z]=solve('0.29744*x/(3+0.1*x+y+z)=(log10((3+x+y+z)/(3+0.1*x+y+z)))^2','0.79*x/(3+0.1*y+z)=(log10((3+x+y+z)/(3+0.1*x+y+z)*(3+y+z)/(3+0.1*y+z)))^2','1.25*x/(3+0.1*z)=(log10((3+x+y+z)/(3+0.1*x+y+z)*(3+y+z)/(3+0.*1y+z)*(3+z)/ 试证明(x+y-2z)+(y+z-2x)+(z+x-2y)=3(x+y-2z)(y+z-2x)(z+x-2y) 已知(x+y)(x+z)=x,(y+z)(y+x)=2y,(z+x)(z+y)=3z,求x,y,z 解方程组x-2y=-9 y-z=3 2z+x=47