展开 (11a^3-9a)/((3a-2)(3+2a))

解答

展开

\frac{11 a ^{3} - 9 a}{( 3 a - 2 ) ( 3 + 2 a )}

\frac{11 a ^{3} - 9 a}{6 a ^{2} + 5 a - 6}

求解步骤

\frac{11 a ^{3} - 9 a}{( 3 a - 2 ) ( 3 + 2 a )}

乘开

(3 a - 2) (3 + 2 a) : 6 a^{2} + 5 a - 6

= \frac{11 a ^{3} - 9 a}{6 a ^{2} + 5 a - 6}

\frac{\partial}{\partial t} ((u (t, x)) (3 x - 2 t))

e x p an d - \frac{d}{d s} (\frac{a}{s ( s ^{2} - b )})

e x p an d - \frac{12 ( 6 + 2 )}{17}

e x p an d \frac{7 x + 2}{( x + 2 ) ^{2} ( x - 2 )}

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