展开-((6x-5)(x+5))/((x-6)(x+6)(x-5))

解答

展开

- \frac{( 6 x - 5 ) ( x + 5 )}{( x - 6 ) ( x + 6 ) ( x - 5 )}

- \frac{6 x ^{2} + 25 x - 25}{x ^{3} - 5 x ^{2} - 36 x + 180}

求解步骤

- \frac{( 6 x - 5 ) ( x + 5 )}{( x - 6 ) ( x + 6 ) ( x - 5 )}

乘开

(x - 6) (x + 6) (x - 5) : x^{3} - 5 x^{2} - 36 x + 180

= - \frac{( 6 x - 5 ) ( x + 5 )}{x ^{3} - 5 x ^{2} - 36 x + 180}

乘开

(6 x - 5) (x + 5) : 6 x^{2} + 25 x - 25

= - \frac{6 x ^{2} + 25 x - 25}{x ^{3} - 5 x ^{2} - 36 x + 180}

e x p an d 2 (5 - 3)

e x p an d \frac{3 b ( a ^{2} + 5 )}{c}

s im pl i f y 2 (33 - 67 + 21 - 14)

e x p an d x l e f t (x + y)

e x p an d (e^{t} \cdot cos (t) - e^{t} \cdot sin (t))^{2}