展开 (14)/((s+2)(s+14))

解答

展开

\frac{14}{( s + 2 ) ( s + 14 )}

\frac{14}{s ^{2} + 16 s + 28}

求解步骤

\frac{14}{( s + 2 ) ( s + 14 )}

乘开

(s + 2) (s + 14) : s^{2} + 16 s + 28

= \frac{14}{s ^{2} + 16 s + 28}

e x p an d ((x - 1) \cdot 2^{x + 1}) \cdot 2.5

e x p an d (- 1, - 3) y (2, - 2)

e x p an d so l v e (3 x^{2} + 6 x = 0)

e x p an d \frac{( m - n ) ^{2} + 6 ( m - n )}{9}

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