The square root of 81 is 9. 9 x 9 = 81.
The cubed root of 726 is 9. 9 squared is 81
~18.721
-9 squared is 81.
3x squared - (3x) squared = 0
The square root of 81 is 9. 9 x 9 = 81.
81
~18.721
The cubed root of 726 is 9. 9 squared is 81
The square root of 81 is 9. This is because 9*9 is 81. This also means that 81 is 9 squared or 92.
well, the square root of 81 is 9, and seven squared is 49, so it wud be 40
The cube root of 729 is 9 and 9 squared is 81.
When 100 is squared, the root is 10. That means you can multiply 10 by 10 and the answer is 100. The square root of 81 is 9 and 8 is the square root of 64.
8 and 9. 8 squared is 64. 9 squared is 81. 64 < 75 < 81, hence the square root of 75 is somewhere between 8 and 9.
x2=-81take the square root of both sidessince 81 is negative you need to take 81 times i when i=-1 then solve as the square root of 81. your answer is x=9i
With square roots if you have a number times itself or squared then that that product is that numbers square root example: 9x9= 81 81 square root is 9