Prove that if a and b are rational then a – b is rationa If n = 4k+3 does 8 divide ² _ 1? Eplain carefully

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
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Section: Chapter Questions
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Prove that if a and b are rational then a – b is rational.
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If n = 4k + 3, does 8 divide n? – 1? Explain carefully.
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Transcribed Image Text:Prove that if a and b are rational then a – b is rational. | If n = 4k + 3, does 8 divide n? – 1? Explain carefully. -
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