Multiply:
$(4 x - 7 y) (2 y + 3 x)$

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Solution

To multiply:
$(4 x - 7 y) (2 y + 3 x)$

Now,

$(4 x - 7 y) (2 y + 3 x)$
$= 4 x (2 y + 3 x) - 7 y (2 y + 3 x)$
$= 8 x y + 12 x^{2} - 14 y^{2} - 21 x y$
$= 12 x^{2} - 14 y^{2} - 13 x y$

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