Lisa solves a quadratic equation as shown below.6 = x2 + 2x - 86 = (x + 4)(x – 2)6 = x+ 4 and6 = x – 2x = 2 and x = 8%3D%3DWhich of these best describes the error in Lisa's work?A. The last line should be x = 2 or x = 8.B. The 6 should have been subtracted from both 6 and x² + 2x – 8 before factoring.C. Only (x + 4) or (x – 2) should be set equal to 6, not both factors.D. The 6, 2, and -8 should be simplified to 3, 1, and -4 before factoring.%3D

The given quadratic equation, 6=x2+2x-8

Lisa solves a quadratic equation as shown below. 6 = x? + 2x - 8 6 = (x + 4)(x- 2) 6 = x + 4 and6 = x-2 x = 2 and x = 8 %3D %3D Which of these best describes the error in Lisa's work? A. The last line should be x = B. The 6 should have been subtracted from both 6 and x? + 2x - 8 before factoring. C. Only (x + 4) or (x- 2) should be set equal to 6, not both factors. D. The 6,2, and -8 should be simplified to 3, 1, and -4 before factoring. 2 or x = 8.

Lisa solves a quadratic equation as shown below. 6 = x? + 2x - 8 6 = (x + 4)(x- 2) 6 = x + 4 and6 = x-2 x = 2 and x = 8 %3D %3D Which of these best describes the error in Lisa's work? A. The last line should be x = B. The 6 should have been subtracted from both 6 and x? + 2x - 8 before factoring. C. Only (x + 4) or (x- 2) should be set equal to 6, not both factors. D. The 6,2, and -8 should be simplified to 3, 1, and -4 before factoring. 2 or x = 8.

College Algebra

7th Edition

ISBN:9781305115545

Author:James Stewart, Lothar Redlin, Saleem Watson

Publisher:James Stewart, Lothar Redlin, Saleem Watson

Chapter1: Equations And Graphs

Section: Chapter Questions

Problem 15CC

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