多项式4x^2 y^3 z-12x^3 y^4中各项的公因式是() A.4 B.4xy C.4x^2y D.4x^2y^3
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多项式4x^2y^3z-12x^3y^4中各项的公因式是()A.4B.4xyC.4x^2yD.4x^2y^3多项式4x^2y^3z-12x^3y^4中各项的公因式是()A.4B.4xyC.4x^2yD
多项式4x^2 y^3 z-12x^3 y^4中各项的公因式是() A.4 B.4xy C.4x^2y D.4x^2y^3
多项式4x^2 y^3 z-12x^3 y^4中各项的公因式是() A.4 B.4xy C.4x^2y D.4x^2y^3
多项式4x^2 y^3 z-12x^3 y^4中各项的公因式是() A.4 B.4xy C.4x^2y D.4x^2y^3
D
将多项式X^2-4Y^2-9Z^2-12YZ分解成因式的积,结果是A.(x+2y-3z)(x-2y-3z)B.(x-2y-3z)(x-2y+3z)C.(x+2y+3z)(x+2y-3z)D.(x+2y+3z)(x-2y-3z)
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x=y/z=z/3,x+y+z =12,求2x+3y+4z是多少,
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化简-(-3x-y+2z)-{-x+【4x-(x-y-z)-3x+2z}
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数学--整式运算4(x-y+z)-2(x+y-z)-3(-x-y-z)
解方程组{3x+y-z=4,2x-y+3z=12,x+y+z=6}