78 minus78
79, -79
The square root of 81 squared is 81.
81 x 81 = 6561
9 x 9 = 81 9 squared = 81 3 squared times 3 squared = 81
lokiya said: 9 squared is equal to 81
-9 squared = 81(-9)^2 = (-9) * (-9) = 81
Type your answer here... 81
812 = 81 x 81 = 6,561
9 squared is 81 and 16 squared is 256
The quadratic equation will have two solutions.
Nine square yards equals 81 square feet.