展开 ((t+3)(3t^2+5))/(2-3t)

解答

展开

\frac{( t + 3 ) ( 3 t ^{2} + 5 )}{2 - 3 t}

\frac{3 t ^{3} + 5 t + 9 t ^{2} + 15}{2 - 3 t}

求解步骤

\frac{( t + 3 ) ( 3 t ^{2} + 5 )}{2 - 3 t}

乘开

(t + 3) (3 t^{2} + 5) : 3 t^{3} + 5 t + 9 t^{2} + 15

= \frac{3 t ^{3} + 5 t + 9 t ^{2} + 15}{2 - 3 t}

e x p an d (12, - 10) y (16, 10)

e x p an d \frac{2 + 5 x}{( x - e ^{j} ) ( x - 0.8 )}

e x p an d \frac{x ^{4} - 18 x + 81}{( x - 3 ) ^{2}}

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

\frac{d}{d y} ((x) (x^{3} + y^{3}))