Algebra 1

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

Chapter 11 - Rational Expressions and Functions - 11-1 Simplifying Rational Expressions - Practice and Problem-Solving Exercises - Page 655: 9


1/(7x); x cannot equal 0

Work Step by Step

Recall, if two exponents with the same base (in this case, x) are in the numerator and the denominator of a fraction, we subtract the exponent in the numerator by the exponent in the denominator of the fraction. Thus, we obtain: $ 4x^{3} / 28x^{4} \\\\ 4 / 28 x \\\\1/7x$ x cannot equal 0, for if x equaled 0, then the denominator of the original fraction would simplify to 0, which is not allowed.
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