几道初一计算1.-3x(-y-xyz)2.(1/2x^3y^2)(-1/4x^2y^3)^23.(3a^2)^3·b^4-3(ab^2)^2·a^4
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几道初一计算1.-3x(-y-xyz)2.(1/2x^3y^2)(-1/4x^2y^3)^23.(3a^2)^3·b^4-3(ab^2)^2·a^4
几道初一计算
1.-3x(-y-xyz)
2.(1/2x^3y^2)(-1/4x^2y^3)^2
3.(3a^2)^3·b^4-3(ab^2)^2·a^4
几道初一计算1.-3x(-y-xyz)2.(1/2x^3y^2)(-1/4x^2y^3)^23.(3a^2)^3·b^4-3(ab^2)^2·a^4
3xy+3x^2yz
1/32x^7y^8
24a^6b^4
几道初一计算1.-3x(-y-xyz)2.(1/2x^3y^2)(-1/4x^2y^3)^23.(3a^2)^3·b^4-3(ab^2)^2·a^4
几道初一因式分解·分组分解法的题,快1,c²+a²-b²+2ac2,2a²-2+2b²-4ab3,x^3+x²y-x²z-xyz
(-x²y)²·(3/2xyz)·5/3x³z³计算
2x+3y+4z,xyz
计算9xyz*(-1/3x^2y)^2*(-xy)^3
3x^2y-{xyz-(2xyz-x^2z)-4x^2z+[3x^2y-(4xyz-5x^z-3xyz)]}化简
化简求值(2x^3-xyz)-2(x^3-y^3+xyz)+(xyz-2y^3)=?
若/x-2/+/y+3/+/z-5/=0 计算:1.xyz的值 2.求/x/+/y/+/z/的值
计算:(-6分之1x²y)·4分之3x²y²·2xyz²
x^3+x^2y-x^z-xyz分解因式
xyz-【2xy-(3xyz-yz)+4xyz】,其中x=2,y=-1/2,z=-1
xyz-【2xy-(3xyz-yz)+4xyz】,其中x=2,y=-1/2,z=-1
(-2x²y)³·(-1/3xyz)·3/5x³z³计算
24xy^2z^2(x+y+z)-32xyz(z-x-y)^2+8xyz^3(z-x-y)
24xy^2z^2(x+y+z)-32xyz(z-x-y)^2+8xyz^3(z-x-y)
(2x^3-xyz)-2(x^3-y^3+xyz)+(xyz-2y^3),其中x=-1,y=-2,z=-3.
先化简再求值3xyz+2(x^2y+y^2z-xyz)-xyz+2z^2x x=1 y= -1 z=2
(2x³-xyz)-2(x³-y³+xyz)+(xyz-3y³) x=1 y=-2 z=-3