If squares of 2 consecutive positive integers differ by 1987. Then sum of these integers is
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Let the positive integer be x
A. T. Q.
X2-(x-1)2=1987
X2-(x2+1-2x)=1987
-1+2x=1987
2x=1988
X=994
X+1=995
X+(x+1)=994+995
=1989
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