Question
Find the following products:
$(3m - 4n) × (2m - 3n)$

Answer

$(3m - 4n) × (2m - 3n)$
$= 3m(2m - 3n) - 4n(2m - 3n)$
$ =6 m^2-9 m n-8 m n+12 n^2 $
$ =6 m^2-17 m n+12 n^2 $

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