Algebra 1

Published by Prentice Hall
ISBN 10: 0133500403
ISBN 13: 978-0-13350-040-0

Chapter 11 - Rational Expressions and Functions - 11-2 Multiplying and Dividing Rational Expressions - Practice and Problem-Solving Exercises - Page 663: 63


$x=0, -4$

Work Step by Step

We are dividing the second fraction, so the numerator and denominator are flipped. Thus, there are two formulas that cannot equal zero in the denominator. Those formulas are $6x$ and $-3x-12$. If we set these equal to zero, then we find $x=0$ and $x=-4$, so these values cause the expression to be undefined.
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