Algebra and Trigonometry 10th Edition

Published by Cengage Learning
ISBN 10: 9781337271172
ISBN 13: 978-1-33727-117-2

Chapter 1 - 1.4 - Quadratic Equations and Applications - 1.4 Exercises - Page 110: 68

Answer

2 unique real solutions

Work Step by Step

The quadratic equation : $-8.3x^2-2.4x+9=0$ Use the discriminant to find the number of real solutions : $(-2.4)^2-4(-8.3)(9)=304.56$ Since the discriminant is greater than zero, hence the number of unique real solutions for this equation is 2.
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