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Find all the roots of the given equation. x4 -81 = 0 O-3j, 3j -3 - 3j, -3 + 3j, 3 - 3j, 3 + 3j -3,3 -3, -3j, 3, 3j

Algebra: Structure And Method, Book 1

(REV)00th Edition

ISBN:9780395977224

Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole

Publisher:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole

Chapter11: Rational And Irrational Numbers

Section11.5: Square Roots Of Variable Expressions

Problem 43WE

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Question

Find all the roots of the given equation.
x4 -81 = 0
O-3j, 3j
-3 - 3j, -3 + 3j, 3 - 3j, 3 + 3j
-3,3
-3, -3j, 3, 3j
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