Evaluate 144^2 − 90^2 using an arithmetic identity.
Note
Use a²−b²=(a−b)(a+b). Here (144−90)(144+90) = 12636.
Evaluate 144^2 − 90^2 using an arithmetic identity.
Use a²−b²=(a−b)(a+b). Here (144−90)(144+90) = 12636.