ozz92 ozz92
  • 23-02-2020
  • Mathematics
contestada

X4 - 3x3 - 5x - 15 = 0
Need help. Step by step

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kudzordzifrancis
kudzordzifrancis kudzordzifrancis
  • 29-02-2020

Answer:

[tex]x = - 1.27 \: and \: x= 3.67[/tex]

Step-by-step explanation:

We want to solve

[tex] {x}^{4} - 3 {x}^{3} - 5x - 15 = 0[/tex]

We can solve this by graphing:

[tex]y = {x}^{4} - 3 {x}^{3} - 5x - 15 [/tex]

The x-intercepts are the solution to the given equation.

From the graph, the x-intercepts are

[tex]x = - 1.27 \: and \: x= 3.67[/tex]

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