Precalculus: Mathematics for Calculus, 7th Edition

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

Chapter 1 - Section 1.11 - Solving Equations and Inequalities Graphically - 1.11 Exercises - Page 121: 28

Answer

$x=-1$ and $1.44$

Work Step by Step

Given equation- $x^{6} - 2 x^{3} -3$ = $0$ We are asked to find all real solutions of this equation. Graphing y= $x^{6} - 2 x^{3} -3$, using graphing calculator- We get two x−intercepts, i.e. $x=-1$ and $x=1.44$ Therefore $x=-1$ and $1.44$
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