展开 (10)/(s(s+2)(s+4))

解答

展开

\frac{10}{s ( s + 2 ) ( s + 4 )}

\frac{10}{s ^{3} + 6 s ^{2} + 8 s}

求解步骤

\frac{10}{s ( s + 2 ) ( s + 4 )}

乘开

s (s + 2) (s + 4) : s^{3} + 6 s^{2} + 8 s

= \frac{10}{s ^{3} + 6 s ^{2} + 8 s}

s im pl i f y (x^{2} + 2 x y i - y^{2} - 2)^{2}

e x p an d \frac{100 \cdot b \cdot z ^{2}}{( 10 \cdot z - 9 ) ^{2}}

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

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

e x p an d \frac{1}{k ( k + 1 )} + (k + 1)