展开 (x^2+5x-9)/((x-1)(2x-3))

解答

展开

\frac{x ^{2} + 5 x - 9}{( x - 1 ) ( 2 x - 3 )}

\frac{x ^{2} + 5 x - 9}{2 x ^{2} - 5 x + 3}

求解步骤

\frac{x ^{2} + 5 x - 9}{( x - 1 ) ( 2 x - 3 )}

乘开

(x - 1) (2 x - 3) : 2 x^{2} - 5 x + 3

= \frac{x ^{2} + 5 x - 9}{2 x ^{2} - 5 x + 3}

e x p an d lo g_{2} (4 p^{5} q^{12})

s im pl i f y (x - 5 + 2) (x - 5 - 2)

e x p an d A (1, - 2) y B (0, 2)

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

e x p an d \frac{x ^{2} + 5 x + 6}{( x + 1 ) ^{2}}