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4 years ago

Understanding this proof for the proposition "For all integers a, gcd(9a+4, 2a+1) = 1.

Mathematics

1 answer:

olganol [36]4 years ago

3 0

First line because 4(2a+1)=8a+4 and 9a+4-(8a+4)= a

Second line because a times 2 =2a and 2a+1-2a=1

<span>Although the second equality is more or less obvious since 2a+1 leaves a remainder of 1 when divided by a.</span>

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Step-by-step explanation:

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