Prove that n is odd if and only if 3n+9 is even. You must use definitions of even (and odd, if needed). Do not use "even plus even is even" of similar rules of thumb.
Prove that n is odd if and only if 3n+9 is even. You must use definitions of even (and odd, if needed). Do not use "even plus even is even" of similar rules of thumb.
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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Prove that n is odd if and only if 3n+9 is even. You must use definitions of even (and odd, if needed). Do not use "even plus even is even" of similar rules of thumb.
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