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Popular >

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

Solution

expand

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

Solution

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

Solution steps

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

Expand

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

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

Apply the fraction rule:

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

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

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

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Frequently Asked Questions (FAQ)

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