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Popular >

expand ((1+3n)n)/2

Solution

expand

\frac{( 1 + 3 n ) n}{2}

Solution

\frac{n}{2} + \frac{3 n ^{2}}{2}

Solution steps

\frac{( 1 + 3 n ) n}{2}

Expand

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

= \frac{n + 3 n ^{2}}{2}

Apply the fraction rule:

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

\frac{n + 3 n ^{2}}{2} = \frac{n}{2} + \frac{3 n ^{2}}{2}

= \frac{n}{2} + \frac{3 n ^{2}}{2}

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Frequently Asked Questions (FAQ)

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