展开 (19x-34)/((x-2)(x^2+1))

解答

展开

\frac{19 x - 34}{( x - 2 ) ( x ^{2} + 1 )}

\frac{19 x - 34}{x ^{3} + x - 2 x ^{2} - 2}

求解步骤

\frac{19 x - 34}{( x - 2 ) ( x ^{2} + 1 )}

乘开

(x - 2) (x^{2} + 1) : x^{3} + x - 2 x^{2} - 2

= \frac{19 x - 34}{x ^{3} + x - 2 x ^{2} - 2}

e x p an d (cos (x) + k) (k - sin (x))

s im pl i f y x (x - 3)^{2}

s im pl i f y (x^{\frac{3}{2}} - 4 x) (x^{4} - \frac{3}{x ^{2}} + 2)

s im pl i f y (3 x - 2) \times (3 x + 2)

e x p an d \frac{1}{( x + 2 ) ( x - 1 )}