jteresa5460 jteresa5460

17-02-2017
Mathematics

contestada

x3-4x-7x+28=0 find the solution

Respuesta :

garydesir1 garydesir1

17-02-2017

Hi Teresa

x^3 - 4x - 7x + 28 = 0
x^3 - 11x + 28 = 0
Now we just need to use the cubic formula (Do you know the formula)
X = -4.20267

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