Precalculus: Mathematics for Calculus, 7th Edition

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

Chapter 1 - Review - Exercises - Page 136: 134

Answer

The solutions to the given equation are $x=0$ and $x=4$.

Work Step by Step

The equation involves only the variable x. The solution to the equation will be the x-coordinates of the points where the graph of $y=x^2-4x$ crosses the x-axis. These are the x-intercepts of the parabola. (Refer to the graph in the attached image below) Thus, the solutions to the equation are $x=0$ and $x=4$
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