Multiply (x-2y-3z)(2z+x-4y)Horizontal method
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Answer:
x^2 +8y^2 -6z^2 - xz - 6xy + 8yz
Step-by-step explanation:
(x - 2y -3z) (2z + x - 4y)
=> 2xz + x^2 - 4xy - 4yz - 2xy + 8y^2 - 6z^2 - 3xz + 12yz
=> x^2 +8y^2 -6z^2 - xz - 6xy + 8yz
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