zs

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

受欢迎的代数 >

solvefor D,2b-hb=D^3

解答

求解

D, 2 b - hb = D^{3}

解答

D = 3 2 b - hb, D = - \frac{3 2 b - hb}{2} + \frac{3 2 b - hb 3}{2} i, D = - \frac{3 2 b - hb}{2} - \frac{3 2 b - hb 3}{2} i

求解步骤

2 b - hb = D^{3}

交换两边

D^{3} = 2 b - hb

对于

x^{3} = f (a)

解为

x = 3 f (a), 3 f (a) \frac{- 1 - 3 i}{2}, 3 f (a) \frac{- 1 + 3 i}{2}

D = 3 2 b - hb, D = 3 2 b - hb \frac{- 1 + 3 i}{2}, D = 3 2 b - hb \frac{- 1 - 3 i}{2}

化简

3 2 b - hb \frac{- 1 + 3 i}{2} : - \frac{3 2 b - hb}{2} + \frac{3 2 b - hb 3}{2} i

化简

3 2 b - hb \frac{- 1 - 3 i}{2} : - \frac{3 2 b - hb}{2} - \frac{3 2 b - hb 3}{2} i

D = 3 2 b - hb, D = - \frac{3 2 b - hb}{2} + \frac{3 2 b - hb 3}{2} i, D = - \frac{3 2 b - hb}{2} - \frac{3 2 b - hb 3}{2} i

作图

流行的例子

x^3-6x^2+x-6=x^2+1

x^{3} - 6 x^{2} + x - 6 = x^{2} + 1

b^{3} = 4

-7x-(x+6)=9+2x^9+2x

- 7 x - (x + 6) = 9 + 2 x^{9} + 2 x

x^{7} - 64 x = 0

x^{5} - x^{2} = 0