Question

what is an estimate for negative square root 72

Answer 1

Well, try to find the square root of 72. In order to do this, let's look at the multiples of 72. Some of the multiples are 12*6 and 36*2. One of these has a true value when taking the square root. Use that, and you should find the answer. If you cannot, let me know!

Answer 2

8^2 = 64
9^2 = 81

Has to be in there, somewhere.

Answer 3

Thank you