Algebra 1

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

Chapter 9 - Quadratic Functions and Equations - 9-3 Solving Quadratic Equations - Lesson Check - Page 550: 5


The zeros of a function are the solutions of a quadratic equation (and the x-intercepts of the graph of the related function).

Work Step by Step

$x^2-16=0$ $x^2-16+16=0+16$ $x^2 = 16$ $\sqrt {x^2} = \sqrt {16}$ $x = 4, -4$
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