Evaluate 144^2 − 18^2 using an arithmetic identity.
Note
Use a²−b²=(a−b)(a+b). Here (144−18)(144+18) = 20412.
Evaluate 144^2 − 18^2 using an arithmetic identity.
Use a²−b²=(a−b)(a+b). Here (144−18)(144+18) = 20412.