What is expand ((-x+11)(-x+5))/2 ?

The solution to expand ((-x+11)(-x+5))/2 is (x^2)/2-8x+55/2

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expand ((-x+11)(-x+5))/2

expand

\frac{( - x + 11 ) ( - x + 5 )}{2}

\frac{x ^{2}}{2} - 8 x + \frac{55}{2}

Solution steps

\frac{( - x + 11 ) ( - x + 5 )}{2}

Expand

(- x + 11) (- x + 5) : x^{2} - 16 x + 55

= \frac{x ^{2} - 16 x + 55}{2}

Apply the fraction rule:

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

\frac{x ^{2} - 16 x + 55}{2} = \frac{x ^{2}}{2} - \frac{16 x}{2} + \frac{55}{2}

= \frac{x ^{2}}{2} - \frac{16 x}{2} + \frac{55}{2}

Divide the numbers:

\frac{16}{2} = 8

= \frac{x ^{2}}{2} - 8 x + \frac{55}{2}

\frac{( t ^{2} + 1 ) ( 1 - t )}{t ^{3} + 1}

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

ln (a + e^{(x + y + z)^{2}})

(2 - 6) a + (3 - 6) b

\frac{2 ( 2 x - 3 )}{5}

What is expand ((-x+11)(-x+5))/2 ?
The solution to expand ((-x+11)(-x+5))/2 is (x^2)/2-8x+55/2