Evaluate 132^2 − 42^2 using an arithmetic identity.
Note
Use a²−b²=(a−b)(a+b). Here (132−42)(132+42) = 15660.
Evaluate 132^2 − 42^2 using an arithmetic identity.
Use a²−b²=(a−b)(a+b). Here (132−42)(132+42) = 15660.