Answer
$15x^{2}y+21xy^{2}+10x^{2}+14xy$
Work Step by Step
$(3xy+2x)(5x+7y)$
$=3xy(5x+7y)+2x(5x+7y)$
$=15x^{2}y+21xy^{2}+10x^{2}+14xy$
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