展开 (x-3)/(x^2(x^2+3))

解答

展开

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

\frac{x - 3}{x ^{4} + 3 x ^{2}}

求解步骤

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

乘开

x^{2} (x^{2} + 3) : x^{4} + 3 x^{2}

= \frac{x - 3}{x ^{4} + 3 x ^{2}}

e x p an d (12 J e^{36 J β} + 6 J e^{12 J β})^{2}

e x p an d \frac{- 8 x + 4}{( x ^{2} + x - 6 ) ^{2}}

e x p an d (3 x - \frac{x ^{2}}{3})^{13}

s im pl i f y - i ((1 + i)^{n} - 1)

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