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Popular >

expand (x*(x-1))/2

Solution

expand

\frac{x \cdot ( x - 1 )}{2}

Solution

\frac{x ^{2}}{2} - \frac{x}{2}

Solution steps

\frac{x ( x - 1 )}{2}

Expand

x (x - 1) : x^{2} - x

= \frac{x ^{2} - x}{2}

Apply the fraction rule:

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

\frac{x ^{2} - x}{2} = \frac{x ^{2}}{2} - \frac{x}{2}

= \frac{x ^{2}}{2} - \frac{x}{2}

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Frequently Asked Questions (FAQ)

What is expand (x*(x-1))/2 ?
The solution to expand (x*(x-1))/2 is (x^2)/2-x/2