Question
Multiply $: 9xy^2 + 3x^2y$ by $5xy$
✓
Answer
$(9xy^2 + 3x^2y) \times 5xy$
$= 9xy^2 \times 5xy + 3x^2y \times 5xy$
$= 45x^2y^3 + 15x^3y^2$
$= 9xy^2 \times 5xy + 3x^2y \times 5xy$
$= 45x^2y^3 + 15x^3y^2$
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