What are the solutions to the equation x^3+5x^2-16x-80=0 ?

The solutions to the equation x^3+5x^2-16x-80=0 are x=-5,x=-4,x=4

Find the zeros of x^3+5x^2-16x-80=0

The zeros of x^3+5x^2-16x-80=0 are x=-5,x=-4,x=4

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

x^{3} + 5 x^{2} - 16 x - 80 = 0

x = - 5, x = - 4, x = 4

Solution steps

x^{3} + 5 x^{2} - 16 x - 80 = 0

Factor

x^{3} + 5 x^{2} - 16 x - 80 : (x + 5) (x + 4) (x - 4)

(x + 5) (x + 4) (x - 4) = 0

Using the Zero Factor Principle:

ab = 0

then

a = 0

b = 0

x + 5 = 0 or x + 4 = 0 or x - 4 = 0

Solve

x + 5 = 0 : x = - 5

Solve

x + 4 = 0 : x = - 4

Solve

x - 4 = 0 : x = 4

The solutions are

x = - 5, x = - 4, x = 4

6 x^{8} + 6 = 13 x^{4}

x^{3} - 7 x + 4 = 0

y, x = y^{3} - 6

x^{3} - 6 x^{2} + 13 x - 12 = 0

x^{2} - 5 x = 2 x^{3} - 4 x^{2} - x + 6

What are the solutions to the equation x^3+5x^2-16x-80=0 ?
The solutions to the equation x^3+5x^2-16x-80=0 are x=-5,x=-4,x=4
Find the zeros of x^3+5x^2-16x-80=0
The zeros of x^3+5x^2-16x-80=0 are x=-5,x=-4,x=4