展开-(-5x+4)/(2ln(5)x(-x+1))

解答

展开

- \frac{- 5 x + 4}{2 ln ( 5 ) x ( - x + 1 )}

- \frac{- 5 x + 4}{- 2 ln ( 5 ) x ^{2} + 2 ln ( 5 ) x}

求解步骤

- \frac{- 5 x + 4}{2 ln ( 5 ) x ( - x + 1 )}

乘开

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

= - \frac{- 5 x + 4}{- 2 ln ( 5 ) x ^{2} + 2 ln ( 5 ) x}

s im pl i f y (x - 4) (x + 7) (x - 2) (x + 2)

s im pl i f y (1 - \frac{1}{x}) (1 + \frac{1}{z ^{2}}) (1 + \frac{1}{z})

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

e x p an d \frac{6 x ^{2} + 21 x + 11}{( x ^{2} + 3 ) ( x + 5 )}

e x p an d \frac{( - 1 + 3 x )}{( 2 - 3 x ) ^{2}}