Using the standard formulae, expand: (3 x+5 y-2 z)^2 - Vidyadip

Question

Using the standard formulae, expand:
$(3 x+5 y-2 z)^2$

✓

Answer

$9 x^2+25 y^2+4 z^2+30 x y-20 y z-12 x z$

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