What are the solutions to the equation 0=x^3+5x^2-3x-15 ?

The solutions to the equation 0=x^3+5x^2-3x-15 are x=-5,x=-sqrt(3),x=sqrt(3)

Find the zeros of 0=x^3+5x^2-3x-15

The zeros of 0=x^3+5x^2-3x-15 are x=-5,x=-sqrt(3),x=sqrt(3)

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0 = x^{3} + 5 x^{2} - 3 x - 15

x = - 5, x = - 3, x = 3

Solution steps

0 = x^{3} + 5 x^{2} - 3 x - 15

Switch sides

x^{3} + 5 x^{2} - 3 x - 15 = 0

Factor

x^{3} + 5 x^{2} - 3 x - 15 : (x + 5) (x + 3) (x - 3)

(x + 5) (x + 3) (x - 3) = 0

Using the Zero Factor Principle:

ab = 0

then

a = 0

b = 0

x + 5 = 0 or x + 3 = 0 or x - 3 = 0

Solve

x + 5 = 0 : x = - 5

Solve

x + 3 = 0 : x = - 3

Solve

x - 3 = 0 : x = 3

The solutions are

x = - 5, x = - 3, x = 3

282 = n^{85}

x^{3} (x^{2} - 5) + 4 x = 0

x (x - 2)^{2} = x

- 2 x^{3} + 5 = 21

x^{3} + 0.3 x^{2} + 0.3 x + 0.3 = 0

What are the solutions to the equation 0=x^3+5x^2-3x-15 ?
The solutions to the equation 0=x^3+5x^2-3x-15 are x=-5,x=-sqrt(3),x=sqrt(3)
Find the zeros of 0=x^3+5x^2-3x-15
The zeros of 0=x^3+5x^2-3x-15 are x=-5,x=-sqrt(3),x=sqrt(3)