What are the solutions to the equation -2x^5-8x^3=0 ?

The solutions to the equation -2x^5-8x^3=0 are x=0,x=2i,x=-2i

Find the zeros of -2x^5-8x^3=0

The zeros of -2x^5-8x^3=0 are x=0,x=2i,x=-2i

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- 2 x^{5} - 8 x^{3} = 0

x = 0, x = 2 i, x = - 2 i

Solution steps

- 2 x^{5} - 8 x^{3} = 0

Factor

- 2 x^{5} - 8 x^{3} : - 2 x^{3} (x^{2} + 4)

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

Using the Zero Factor Principle:

ab = 0

then

a = 0

b = 0

x = 0 or x^{2} + 4 = 0

Solve

x^{2} + 4 = 0 : x = 2 i, x = - 2 i

The solutions are

x = 0, x = 2 i, x = - 2 i

24 x + 21 x^{2} - 3 x^{3} = 0

2 x^{4} + 5 x^{2} + 1 = 0

(x^{2} + 3) (x + 1) + x = - 1

3.8 y^{5} = 43.8

2 x^{4} - 8 = 2584

What are the solutions to the equation -2x^5-8x^3=0 ?
The solutions to the equation -2x^5-8x^3=0 are x=0,x=2i,x=-2i
Find the zeros of -2x^5-8x^3=0
The zeros of -2x^5-8x^3=0 are x=0,x=2i,x=-2i