Algebra 1: Common Core (15th Edition)

Published by Prentice Hall
ISBN 10: 0133281140
ISBN 13: 978-0-13328-114-9

Chapter 9 - Quadratic Functions and Equations - 9-5 Completing the Square - Practice and Problem-Solving Exercises - Page 579: 9



Work Step by Step

$p^2-30p+c$ Compare it with $ap^2+bp+c$, we have $b=-30$ For perfect-square trinormal add $(\frac{b}{2})^2$ and plug $b=-30$ to complete the square. $c=(\frac{-30}{2})^2=(-15)^2=225$
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