展开 (asqrt(a)+1)x^3-3x^2+3x-1

解答

展开

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

a x^{3} a + x^{3} - 3 x^{2} + 3 x - 1

求解步骤

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

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

展开

x^{3} (a a + 1) : a x^{3} a + x^{3}

= a x^{3} a + x^{3} - 3 x^{2} + 3 x - 1

e x p an d \frac{1}{y ( y + 1 )}

s im pl i f y (1 + z^{2}) (5 + \frac{4 - 4 z ^{2}}{1 + z ^{2}})

e x p an d (s - 3) (s - 2 + 3)

e x p an d 12 x^{2} - 24 x + 2 - 6 x

e x p an d \frac{x}{( 0.435 - x ) ( 0.5 - x )}