The sum of a positive number and twice its square is 11.88.Find the number.

PREALGEBRA
15th Edition
ISBN:9781938168994
Author:OpenStax
Publisher:OpenStax
Chapter9: Math Models And Geometry
Section: Chapter Questions
Problem 471PT: The sum of 13 and twice a number is — 19. Find the number.
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The sum of a positive number and twice its square is 11.88.Find the number.

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