What is expand ((x+1)(x-3))/2 ?

The solution to expand ((x+1)(x-3))/2 is (x^2)/2-x-3/2

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expand ((x+1)(x-3))/2

expand

\frac{( x + 1 ) ( x - 3 )}{2}

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

Solution steps

\frac{( x + 1 ) ( x - 3 )}{2}

Expand

(x + 1) (x - 3) : x^{2} - 2 x - 3

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

Apply the fraction rule:

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

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

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

Divide the numbers:

\frac{2}{2} = 1

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

3 x l e f t (5 x^{2} - 2 x + 1)

(10000 + x) (5 - 0.2 x)

(x - 1) (x - 4) (x - 1 + i) (x - 1 - i)

(e^{3 + y} + 5) + (e^{3 + y} + 6) y^{'} (t)

\frac{4 - 64}{20 + \frac{10000}{33 s} + 2 s}

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