Hello i don't know how to do this problem ... plesae help me out ... thanks
determine the smallest positive integers, n , which satisfies the equation
n3 + 2n2 = b
where b is the square of an odd integer
i thoguht about replacing b by x2 , and move the x2 to the left side, then i'm kinda stuck ... please show me ...
thank you very much !
If you replace b by x2 then you can write the equation as
From this equation you can see that n + 2 is a square and hence n must be 2 less than a square.Cheers,