Evaluate 36^2 − 42^2 using an arithmetic identity.
Note
Use a²−b²=(a−b)(a+b). Here (36−42)(36+42) = -468.
Evaluate 36^2 − 42^2 using an arithmetic identity.
Use a²−b²=(a−b)(a+b). Here (36−42)(36+42) = -468.