展开 (5s^2+4)/((s^2+17)(s-1))

解答

展开

\frac{5 s ^{2} + 4}{( s ^{2} + 17 ) ( s - 1 )}

\frac{5 s ^{2} + 4}{s ^{3} - s ^{2} + 17 s - 17}

求解步骤

\frac{5 s ^{2} + 4}{( s ^{2} + 17 ) ( s - 1 )}

乘开

(s^{2} + 17) (s - 1) : s^{3} - s^{2} + 17 s - 17

= \frac{5 s ^{2} + 4}{s ^{3} - s ^{2} + 17 s - 17}

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

e x p an d (3 a + 4 c = 8, 2) - (2 a + 3 c = 58)

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e x p an d \frac{4 ( - 3 s ^{2} + 12 s - 8 )}{( s ^{2} - 4 s + 8 ) ^{3}}

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