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Popular >

expand (n(n+1))/6

Solution

expand

\frac{n ( n + 1 )}{6}

Solution

\frac{n ^{2}}{6} + \frac{n}{6}

Solution steps

\frac{n ( n + 1 )}{6}

Expand

n (n + 1) : n^{2} + n

= \frac{n ^{2} + n}{6}

Apply the fraction rule:

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

\frac{n ^{2} + n}{6} = \frac{n ^{2}}{6} + \frac{n}{6}

= \frac{n ^{2}}{6} + \frac{n}{6}

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Frequently Asked Questions (FAQ)

What is expand (n(n+1))/6 ?
The solution to expand (n(n+1))/6 is (n^2)/6+n/6