expand the following (x-2y-3z)³
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Answer:
(x-2y-3z) ^2
= (x-2y-3z) (x-2y-3z)
= x(x-2y-3z) -2y(x-2y-3z) -3z(x-2y-3z)
= x^2-2xy-3zx-2xy+4y^2+6yz -3zx+6yz +9z^2
= x^2-4xy-6zx+4y^2+12yz +9z^2
solved..
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Answer:
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