Question 83 (xiii)

Multiply the following:
$b^{3}, 3 b^{2}, 7 a b^{5}$

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Solution

We have, $b^{3}, 3 b^{2} a n d 7 a b^{5}$
$∴ b^{3} \times 3 b^{2} \times 7 a b^{5} = (1 \times 3 \times 7) \times b^{3} \times b^{2} \times a b^{5} = 21 a b^{10}$

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a, a^{5}, a^{6}

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