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 >

(x+2b)(3x^2-16x+5)=0

解答

(x + 2 b) (3 x^{2} - 16 x + 5) = 0

解答

x = - 2 b, x = \frac{1}{3}, x = 5

求解步骤

(x + 2 b) (3 x^{2} - 16 x + 5) = 0

因式分解

(x + 2 b) (3 x^{2} - 16 x + 5) : (x + 2 b) (3 x - 1) (x - 5)

(x + 2 b) (3 x - 1) (x - 5) = 0

使用零因数法则： If

ab = 0

then

a = 0

or

b = 0

x + 2 b = 0 or 3 x - 1 = 0 or x - 5 = 0

解

x + 2 b = 0 : x = - 2 b

解

3 x - 1 = 0 : x = \frac{1}{3}

解

x - 5 = 0 : x = 5

解为

x = - 2 b, x = \frac{1}{3}, x = 5

作图

流行的例子

z^{3} + 4 = 5 + i

x^{3} - 3 x^{2} + x + 1 = 0

8 x^{4} - 32 x^{2} = 0

x^{3} + x^{2} - x + 15 = 0

x^3-12x^2+47x-60=0

x^{3} - 12 x^{2} + 47 x - 60 = 0