化简 a^2x^2+(1/a-a^3)x-1

解答

化简

a^{2} x^{2} + (\frac{1}{a} - a^{3}) x - 1

a^{2} x^{2} + \frac{( - a ^{4} + 1 ) x}{a} - 1

求解步骤

a^{2} x^{2} + (\frac{1}{a} - a^{3}) x - 1

合并

\frac{1}{a} - a^{3} : \frac{- a ^{4} + 1}{a}

= a^{2} x^{2} + \frac{- a ^{4} + 1}{a} x - 1

化简

\frac{- a ^{4} + 1}{a} x : \frac{( - a ^{4} + 1 ) x}{a}

= a^{2} x^{2} + \frac{( - a ^{4} + 1 ) x}{a} - 1

e x p an d x^{2} y^{''} (x) + x y^{'} (x) + (x^{2} - 4) y

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

e x p an d - 4 (= 2 p + 10)

e x p an d \frac{1}{s ^{2} ( s ^{2} - a )}

s im pl i f y (1 - \frac{1}{( x + 28 ) ^{2}}) (1 - \frac{1}{( x + 29 ) ^{2}})