College Algebra (6th Edition)

Published by Pearson
ISBN 10: 0-32178-228-3
ISBN 13: 978-0-32178-228-1

Chapter 3 - Polynomial and Rational Functions - Exercise Set 3.4 - Page 389: 84


Doesn't make sense.

Work Step by Step

The quadratic formula is used for solving equations of the form $ax^{2}+bx+c=0$ (polynomial equations of degree 2). It generally does not apply when solving equations of a higher degree, for example, $x^{3}+2x-x+2=0$ can not be directly solved with the quadratic formula Note: some higher degree equations can be reduced (using substitutions) into a quadratic form, but the vast majority of equations can not. Verdict: doesn't make sense.
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