annikagrace24 annikagrace24

18-01-2018
Mathematics

contestada

Solve for the roots of x in each of the equations below.
x^4 - 81 = 0

x^4 + 10x^2 + 25 = 0

x^4 - x^2 - 6 = 0

Respuesta :

ecallejas131 ecallejas131

23-01-2018

1. x=3, x=-3

2. 2 i sqrt(5), -i sqrt(5)

3. sqrt(3), -sqrt(3), i sqrt(2), -i sqrt(2)

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