(3x-2y-4z it is in maths the expression the whole cube
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(3x-2y-4z)^3
it is in the form of (a+b+c)^3
formulae for (a+b+c)^3=a^3+b^3+c^3+3(a+b)(a+c)(b+c)
by comparing here a=3x,b=-2y,c=-4z
(3x)^3+(-2y)^3+(-4z)^3+3(3x-2y)(3x-4z)(-2y-4z)
simplify it
it is in the form of (a+b+c)^3
formulae for (a+b+c)^3=a^3+b^3+c^3+3(a+b)(a+c)(b+c)
by comparing here a=3x,b=-2y,c=-4z
(3x)^3+(-2y)^3+(-4z)^3+3(3x-2y)(3x-4z)(-2y-4z)
simplify it
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