Do you agree with what Granny is saying?

Elements Of Modern Algebra
8th Edition
ISBN:9781285463230
Author:Gilbert, Linda, Jimmie
Publisher:Gilbert, Linda, Jimmie
Chapter3: Groups
Section3.4: Cyclic Groups
Problem 5E: The elements of the multiplicative group G of 33 permutation matrices are given in Exercise 35 of...
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Gerty asked Granny from group 1 to explain the group's
answer.
Granny: We said p into p-3 plus 3 into p-3 (then she
deleted p in p3 appearing in their second step) we get p2 -
3p +3p -3p. Then -3p +3p gives us zero and the answer
becomes p2 - 3p (first amendment).
Gerty: You are talking fast Granny. Go slowly, listen to
yourself and explain how you got -3p; +3p and -3p.
Granny: No. There is something wrong in step 2; p into p-3
plus 3 into p-3 gives us p2 - 3p + 3p - 9 and this will
become p2 - 9 (second amendment). Gerty: (to the class)
Do you agree with what Granny is saying?
Transcribed Image Text:PlayDac Gerty asked Granny from group 1 to explain the group's answer. Granny: We said p into p-3 plus 3 into p-3 (then she deleted p in p3 appearing in their second step) we get p2 - 3p +3p -3p. Then -3p +3p gives us zero and the answer becomes p2 - 3p (first amendment). Gerty: You are talking fast Granny. Go slowly, listen to yourself and explain how you got -3p; +3p and -3p. Granny: No. There is something wrong in step 2; p into p-3 plus 3 into p-3 gives us p2 - 3p + 3p - 9 and this will become p2 - 9 (second amendment). Gerty: (to the class) Do you agree with what Granny is saying?
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