### chittagong-divisional-2014

Posted:

**Thu Aug 06, 2015 9:35 pm**If $$a$$,$$b$$ are co-prime and $$a$$ $$=$$ $$259$$, find gcd of $$a^2$$ $$-$$ $$ab$$ $$–$$ $$b^2$$ and $$a$$ $$+$$ $$b$$.

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Posted: **Thu Aug 06, 2015 9:35 pm**

If $$a$$,$$b$$ are co-prime and $$a$$ $$=$$ $$259$$, find gcd of $$a^2$$ $$-$$ $$ab$$ $$–$$ $$b^2$$ and $$a$$ $$+$$ $$b$$.

Posted: **Thu Mar 01, 2018 6:02 pm**

Let $b=1$

Then GCD($a^2-ab-b^2 $,$a+b$)$=1$

So,The answer is $\fbox 1$.

Then GCD($a^2-ab-b^2 $,$a+b$)$=1$

So,The answer is $\fbox 1$.