erweitern ([x(x-1)-2])/2

Lösung

erweitern

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

\frac{x ^{2}}{2} - \frac{x}{2} - 1

Schritte zur Lösung

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

Multipliziere aus

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

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

Wende Bruchregel an:

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

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

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

Wende Regel an

\frac{a}{a} = 1

\frac{2}{2} = 1

= \frac{x ^{2}}{2} - \frac{x}{2} - 1

e x p an d 2 x 2 x^{1}

e x p an d \frac{1}{1172 - 5} (121 - 1) 15.8 1^{2} De t er min e

e x p an d \frac{3 s + 2}{( s ^{2} + 2 ) ( s - 4 )}

e x p an d \frac{2 s + 4}{( s - 2 ) ( s ^{2} + 4 s + 3 )}

e x p an d x^{9} - 9 x^{6} x^{4} + 27 x^{3} y^{8} - 27 y^{12}