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Popular >

expand ((x+7)^2)/2

Solution

expand

\frac{( x + 7 ) ^{2}}{2}

Solution

\frac{x ^{2}}{2} + 7 x + \frac{49}{2}

Solution steps

\frac{( x + 7 ) ^{2}}{2}

(x + 7)^{2} = x^{2} + 14 x + 49

= \frac{x ^{2} + 14 x + 49}{2}

Apply the fraction rule:

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

\frac{x ^{2} + 14 x + 49}{2} = \frac{x ^{2}}{2} + \frac{14 x}{2} + \frac{49}{2}

= \frac{x ^{2}}{2} + \frac{14 x}{2} + \frac{49}{2}

Divide the numbers:

\frac{14}{2} = 7

= \frac{x ^{2}}{2} + 7 x + \frac{49}{2}

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Frequently Asked Questions (FAQ)

What is expand ((x+7)^2)/2 ?
The solution to expand ((x+7)^2)/2 is (x^2)/2+7x+49/2