展开 (-2x+6)/((s-2)^2)

解答

展开

\frac{- 2 x + 6}{( s - 2 ) ^{2}}

\frac{- 2 x + 6}{s ^{2} - 4 s + 4}

求解步骤

\frac{- 2 x + 6}{( s - 2 ) ^{2}}

(s - 2)^{2} = s^{2} - 4 s + 4

= \frac{- 2 x + 6}{s ^{2} - 4 s + 4}

e x p an d \frac{100}{( s + 1 ) ( s + 100 )}

e x p an d (60 - x)^{2} + x^{2}

e x p an d \frac{r ( t sc + 1 )}{t}

e x p an d \frac{1 - 2 a}{( sin ( a ) - cos ( a ) ) ^{2}}

e x p an d \frac{4 e ^{2 s} + s + 1}{e ^{2 s} ( s + 1 ) ( 4 s ^{2} + 8 )}