College Algebra (6th Edition)

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

Chapter 1 - Equations and Inequalities - Exercise Set 1.6 - Page 181: 118


A quadratic equation must follow the form $ax+bx+c$. $x^2+2x+4=0$ meets all these criteria. Another example is $x^3+x^2+4=x^3-2$, which has its highest degree of polynomial as $3$, but it changes to $2$ when it is simplified.

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