How do you multiply $7 m^{3} (3 m n + 6)$ $7m^3(3mn+6)$ ?

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How do you multiply $7 m^{3} (3 m n + 6)$ $7m^3(3mn+6)$ ?

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Answer 1 · 2018-04-04T18:55:26

$21 m^{4} n + 42 m^{3}$ $21m^4n + 42m^3$

This is how I multiplied it:

Explanation:

$7 m^{3} (3 m n + 6)$ $7m^3(3mn+6)$

You solve this by distributing. That means that you "distribute" or multiply the $7 m^{3}$ $7m^3$ to everything inside the parenthesis, like this:
$7 m^{3} \cdot 3 m n = 21 m^{4} n$ $7m^3 * 3mn = 21m^4n$

$7 m^{3} \cdot 6 = 42 m^{3}$ $7m^3 * 6 = 42m^3$

Now we add these two together to get the answer:
$21 m^{4} n + 42 m^{3}$ $21m^4n + 42m^3$

Hope this helps!

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How do you multiply $7 m^{3} (3 m n + 6)$ $7m^3(3mn+6)$ ?

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