What are the solutions to the equation x^3+6x+9x=0 ?

The solutions to the equation x^3+6x+9x=0 are x=0,x=sqrt(15)i,x=-sqrt(15)i

Find the zeros of x^3+6x+9x=0

The zeros of x^3+6x+9x=0 are x=0,x=sqrt(15)i,x=-sqrt(15)i

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

x^{3} + 6 x + 9 x = 0

x = 0, x = 15 i, x = - 15 i

Solution steps

x^{3} + 6 x + 9 x = 0

Factor

x^{3} + 6 x + 9 x : x (x^{2} + 15)

x (x^{2} + 15) = 0

Using the Zero Factor Principle:

ab = 0

then

a = 0

b = 0

x = 0 or x^{2} + 15 = 0

Solve

x^{2} + 15 = 0 : x = 15 i, x = - 15 i

The solutions are

x = 0, x = 15 i, x = - 15 i

2 x^{4} = 128 x

x, 2 x y - x^{3} = 0

- 2 x^{3} + 3 = 0

3 x^{4} + 4 x^{3} + 6 x^{2} - 4 = 0

x^{3} - 2 x = 88

What are the solutions to the equation x^3+6x+9x=0 ?
The solutions to the equation x^3+6x+9x=0 are x=0,x=sqrt(15)i,x=-sqrt(15)i
Find the zeros of x^3+6x+9x=0
The zeros of x^3+6x+9x=0 are x=0,x=sqrt(15)i,x=-sqrt(15)i