Evaluate 108^2 − 42^2 using an arithmetic identity.
Note
Use a²−b²=(a−b)(a+b). Here (108−42)(108+42) = 9900.
Evaluate 108^2 − 42^2 using an arithmetic identity.
Use a²−b²=(a−b)(a+b). Here (108−42)(108+42) = 9900.