Precalculus: Mathematics for Calculus, 7th Edition

Published by Brooks Cole
ISBN 10: 1305071751
ISBN 13: 978-1-30507-175-9

Chapter 1 - Review - Exercises: 79

Answer

x = 4

Work Step by Step

1. To solve the equation $x^{4}$ - 256 = 0, we must bring 256 to the right side, giving use $x^{4}$ = 256 2. Now we take the fourth root of both sides, giving us x =$ \sqrt[4] 256$ 3. Simplifying $ \sqrt[4] 256$ gives us x = 4
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