(b) Use the three-digit rounding (and the method of rationalization if appropriate) to express the roots of the quadratic equation 1² – 80.7r – 0.25 = 0. Be sure to write down the result of rounding at each stage.

(b) Use the three-digit rounding (and the method of rationalization if appropriate) to express the roots of the quadratic equation 1² – 80.7r – 0.25 = 0. Be sure to write down the result of rounding at each stage.

Algebra & Trigonometry with Analytic Geometry

13th Edition

ISBN:9781133382119

Author:Swokowski

Publisher:Swokowski

Chapter2: Equations And Inequalities

Section2.3: Quadratic Equations

Problem 50E

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Question

(b) Use the three-digit rounding (and the method of rationalization if appropriate) to
express the roots of the quadratic equation
1² – 80.7r – 0.25 = 0.
Be sure to write down the result of rounding at each stage.

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