Answer
See the explanation
Work Step by Step
By "completing the square", the one can easily take square root from both sides of equation and then simply solve linear equation instead of quadratic.
Big Ideas Math - Algebra 1, A Common Core Curriculum
by Larson, Ron; Boswell, Laurie
Published by
Big Ideas Learning LLC
ISBN 10:
978-1-60840-838-2
ISBN 13:
978-1-60840-838-2
Chapter 9 - Solving Quadratic Equations - 9.4 - Solving Quadratic Equations by Completing the Square - Communicate Your Answer - Page 505: 3
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