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The student did the following two-column conclusion. Where did he make a mistake? a =b We'll start assuming this to be true. ab = a² Multiply both sides by a. ab-b = a² -b? Subtract b from both sides. b(a-b)=(a+b)(a-b) Factor both sides. b =a+b Divide both sides by a-b. b= 2b Recall we started off assuming a = b. 1= 2 Divide both sides by b.

The student did the following two-column conclusion. Where did he make a mistake? a =b We'll start assuming this to be true. ab = a² Multiply both sides by a. ab-b = a² -b? Subtract b from both sides. b(a-b)=(a+b)(a-b) Factor both sides. b =a+b Divide both sides by a-b. b= 2b Recall we started off assuming a = b. 1= 2 Divide both sides by b.

Algebra and Trigonometry (6th Edition)
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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The student did the following two-column conclusion. Where did he make a mistake? a =b We'll start assuming this to be true. ab = a² Multiply both sides by a. ab-b = a² -b² Subtract b from both sides. b(a-b)=(a+b)(a-b) Factor both sides. b= a+b Divide both sides by a-b. b = 2b Recall we started off assuming a =b. 1= 2 Divide both sides by b.
Transcribed Image Text:The student did the following two-column conclusion. Where did he make a mistake? a =b We'll start assuming this to be true. ab = a² Multiply both sides by a. ab-b = a² -b² Subtract b from both sides. b(a-b)=(a+b)(a-b) Factor both sides. b= a+b Divide both sides by a-b. b = 2b Recall we started off assuming a =b. 1= 2 Divide both sides by b.
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