展开 ((4+x^2))/((4-x^2)^2)

解答

展开

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

\frac{4 + x ^{2}}{16 - 8 x ^{2} + x ^{4}}

求解步骤

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

(4 - x^{2})^{2} = 16 - 8 x^{2} + x^{4}

= \frac{4 + x ^{2}}{16 - 8 x ^{2} + x ^{4}}

e x p an d \frac{6 s ^{2} + 8 s + 3}{s ( s ^{2} + 2 s + 5 )}

e x p an d \frac{3}{x ( x + 6 )}

e x p an d \frac{k ^{3} + 5 k ^{2} + 6 k + 4}{2 k ( k + 2 ) ^{2}}

s im pl i f y 5 (5 + y 15)

e x p an d - 96 (s + s^{'})^{10}