erweitern ((s+9-j)(s+9+j))/((s-8-j^3)(s-8+j^3))

Lösung

erweitern

\frac{( s + 9 - j ) ( s + 9 + j )}{( s - 8 - j ^{3} ) ( s - 8 + j ^{3} )}

\frac{s ^{2} + 18 s - j ^{2} + 81}{s ^{2} - 16 s - j ^{6} + 64}

Schritte zur Lösung

\frac{( s + 9 - j ) ( s + 9 + j )}{( s - 8 - j ^{3} ) ( s - 8 + j ^{3} )}

Multipliziere aus

(s - 8 - j^{3}) (s - 8 + j^{3}) : s^{2} - 16 s - j^{6} + 64

= \frac{( s + 9 - j ) ( s + j + 9 )}{s ^{2} - 16 s - j ^{6} + 64}

Multipliziere aus

(s + 9 - j) (s + 9 + j) : s^{2} + 18 s - j^{2} + 81

= \frac{s ^{2} + 18 s - j ^{2} + 81}{s ^{2} - 16 s - j ^{6} + 64}

e x p an d \frac{1}{( x - k ) ^{2}}

e x p an d \frac{5 i ^{9} ( 2 - 3 i )}{2 - 1}

e x p an d \frac{( ( x + 3 ) ^{2} ( 2 x - 3 ) )}{( x + 1 ) ^{2}}

e x p an d \frac{- 2 x ^{2} + x - 2}{x ^{2} ( x - 2 ) ( x ^{2} + 1 )}

e x p an d d t (3 t^{4} - 5 t^{6})