展开 (2(s+8))/(s^2+4s+13)

解答

展开

\frac{2 ( s + 8 )}{s ^{2} + 4 s + 13}

\frac{2 s + 16}{s ^{2} + 4 s + 13}

求解步骤

\frac{2 ( s + 8 )}{s ^{2} + 4 s + 13}

乘开

2 (s + 8) : 2 s + 16

= \frac{2 s + 16}{s ^{2} + 4 s + 13}

e x p an d (x^{2} - 2 x - 8) e^{x}

s im pl i f y (2 x + \frac{1}{2}) (2 x - \frac{1}{2})

e x p an d \frac{( x + 2 ) ( x - 4 )}{( x + 4 ) ( x - 5 ) ( x + 1 )}

e x p an d - 4 x^{5} \cdot x^{5}

e x p an d lo g_{10} (2) (x + 3)