展开 (2(x^2-x+2))/(x-1)

解答

展开

\frac{2 ( x ^{2} - x + 2 )}{x - 1}

\frac{2 x ^{2} - 2 x + 4}{x - 1}

求解步骤

\frac{2 ( x ^{2} - x + 2 )}{x - 1}

乘开

2 (x^{2} - x + 2) : 2 x^{2} - 2 x + 4

= \frac{2 x ^{2} - 2 x + 4}{x - 1}

e x p an d \frac{5 X - 65}{( X - 4 ) ( X - 9 )}

e x p an d (t + 3)^{2} H^{5}

e x p an d (3 e^{3 t} - 3 e^{t}) (1.5 e^{- 3 t} - 0.5 e^{- t})

e x p an d 2 π (\frac{56}{3} - 83)

e x p an d (x^{2} + 9) (x - 4 - 5)