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Popular >

expand (n(n^2-1))/3

Solution

expand

\frac{n ( n ^{2} - 1 )}{3}

Solution

\frac{n ^{3}}{3} - \frac{n}{3}

Solution steps

\frac{n ( n ^{2} - 1 )}{3}

Expand

n (n^{2} - 1) : n^{3} - n

= \frac{n ^{3} - n}{3}

Apply the fraction rule:

\frac{a \pm b}{c} = \frac{a}{c} \pm \frac{b}{c}

\frac{n ^{3} - n}{3} = \frac{n ^{3}}{3} - \frac{n}{3}

= \frac{n ^{3}}{3} - \frac{n}{3}

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Frequently Asked Questions (FAQ)

What is expand (n(n^2-1))/3 ?
The solution to expand (n(n^2-1))/3 is (n^3)/3-n/3