Geometry: Common Core (15th Edition)

Published by Prentice Hall
ISBN 10: 0133281159
ISBN 13: 978-0-13328-115-6

Chapter 6 - Polygons and Quadrilaterals - 6-4 Properties of Rhombuses, Rectangles, and Squares - Practice and Problem-Solving Exercises - Page 382: 53

Answer

x = 2 (x = -5 won't work)

Work Step by Step

7 x^2 - 10 = 6 x^2 - 3x x^2 + 3x - 10 = 0 (x + 5)(x-2) = 0 x = 2
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