Question
Find the following products:
$(9x + 5y) × (4x + 3y)$
$(9x + 5y) × (4x + 3y)$
✓
Answer
$(9x + 5y) × (4x + 3y)$
$9x(4x + 3y) + 5y(4x + 3y)$
$=36 x^2+27 x y+20 x y+15 y^2$
$=36 x^2+47 x y+15 y^2$
$9x(4x + 3y) + 5y(4x + 3y)$
$=36 x^2+27 x y+20 x y+15 y^2$
$=36 x^2+47 x y+15 y^2$
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