Precalculus (10th Edition)

Published by Pearson
ISBN 10: 0-32197-907-9
ISBN 13: 978-0-32197-907-0

Appendix A - Review - A.6 Solving Equations - A.6 Assess Your Understanding - Page A52: 108

Answer

Repeated real solution.

Work Step by Step

The equation is in standard form $ax^2+bx+c=0$. We have $a=25,b=-20$ and $c=4$. The discriminant is $=b^2-4ac$ $=(-20)^2-4(25)(4)$ $=400-400$ $=0$ Since $0=0$. There are two equal real solutions. Hence, the equation has repeated real solution.
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