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Subtract:vi −...

Question

Subtract:
$(v i) - x y + y z - z x$ from $x y - y z + x z$

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Solution

Step: Find the value of $(x y + y z + z x) - (- x y + y z - z x)$
We need to subtract $(- x y + y z - z x)$ from $(x y - y z + z x)$
$= (x y - y z + z x) - (- x y + y z - z x) = x y - y z + z x + x y - y z + z x = x y + x y - y z - y z + z x + z x = 2 x y - 2 y z + 2 z x$
Hence, the answer is $(2 x y - 2 y z + 2 z x)$

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