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

asked Jun 18, 2019 25.6k views

1 vote

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

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4 votes

1. x=3, x=-3

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

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

Sai Venkat answered Jun 22, 2019

8.4k points

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