Algebra: Structure And Method, Book 1
(REV)00th Edition
ISBN:9780395977224
Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Publisher:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Chapter5: Factoring Polynomials
Section5.4: Multiplying Binomials Mentally
Problem 49WE
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![1. Use a direct proof to show that "If n is an odd number, then n' is an odd number."
2. Provide a proof by contradiction that:
"Ifn is an integer and n + 2n + 5 is odd, then n is even."](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fde534277-b94c-4596-b656-f26e00e0e664%2F2398c912-0af5-426c-bd1b-ca3d26274892%2F5kb7hbt_processed.jpeg&w=3840&q=75)
Transcribed Image Text:1. Use a direct proof to show that "If n is an odd number, then n' is an odd number."
2. Provide a proof by contradiction that:
"Ifn is an integer and n + 2n + 5 is odd, then n is even."
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