Product of n square - n+1square
Calculating the product of n square - n+1 square n square - n+1 square = -n - n+1 Example: If n square =13 , n+1 square = 13 +1 square so, n+1 square = 14 n square=13 n+1 square=14 Calculation in normal process 13 square-14 square 13 square=169 14 square=196 13 square-14 square=169-196= -27 Calculation using formula 13 square -14 square = -13 - 14 = -27 [as n square - n+1 square = -n - n+1]