Answered: 10. Prove that the product of two…

10. Prove that the product of two integers is odd if and only if both of the integers are odd. 11. Prove that if r is a real solution to r + 3x2 + 7x +2=0, then r must be negative.

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

Chapter8: Introduction To Functions

Section8.1: Equations In Two Variables

Problem 45WE

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Need help with these two logic questions. Thanks

10. Prove that the product of two integers is odd if and only if both of the integers are odd.
11. Prove that if x is a real solution to r5 + 3x2 + 7x + 2 = 0, then r must be negative.

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