This problem has two errors. Can you find both? Solve 2x2 – 4x -- 1 = 0

Algebra and Trigonometry (6th Edition)
6th Edition
ISBN:9780134463216
Author:Robert F. Blitzer
Publisher:Robert F. Blitzer
ChapterP: Prerequisites: Fundamental Concepts Of Algebra
Section: Chapter Questions
Problem 1MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...
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3. This problem has two errors. Can you find both?
Solve 2x2 - 4x -- 1 0
Using the quadratic formula
= 2
-=(-4) ± V(-4) - 4(2)(-1)
a
2(2)
4+ V16-8
b = -4
%3D
4
4+ /8
C = - 1
%3D
4
4姓22
= ±2/2
Transcribed Image Text:3. This problem has two errors. Can you find both? Solve 2x2 - 4x -- 1 0 Using the quadratic formula = 2 -=(-4) ± V(-4) - 4(2)(-1) a 2(2) 4+ V16-8 b = -4 %3D 4 4+ /8 C = - 1 %3D 4 4姓22 = ±2/2
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