we have a set A i.e
A=2x -1
The value of x lies between
57,885,000 ≤ X ≤ 999,999,999
And we have another set B i.e.
B= 4m2+4m(n+1)+n2 m,n belongs to natural no.
4m2+4m(n+1)+n2 ≤ 2999,999,999
Now we have to find another set C i.e.
C = A - B
Hypothetical eg.
IF A = 2,3,4,5
& B = 4,5,6
Then C come out be = 2,3
Set C excludes all those values which are common in A and B