Question
$15 \times 3 = 45$ and $15x \times 3x^5y^2 =$ ............
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Answer
$15 \times 3 = 45$ and $15x \times 3x^5y^2 = 15 \times 3 \times x \times x^5 \times y^2 = 45x^6y^2$
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