Assuming you are not yet into complex numbers, the answer is: some number between 0 and 3 (but not including 3).
* == == what are the values of square root of x is less than 7 ? ----
if x is equal to the square root of 81 then x is ±9 (plus or minus 9)
x can be any number greater than 16 and less than 81.
Square root of (1296) =Square root of (16 x 81)=SQ. root of (16) x Sq. root of (81) =4 x 9 =36
Square root of 49 = 7... Square root of 9 = 3... 3 x 7 = 21
The square root of 81 is 9. 9 x 9 = 81.
Square roots can be positive or negative. 9 x 9 = 81 -9 x -9 = 81 9 is the positive square root of 81.
'x' is less than 144.
x2-b = 9 x2 = 9+b Square root both sides: x = the square root of (9+b)
x = 9
Square root of 324 = square root of (81 x 4) = square root of 81 x square root of 4 and that is 9 x 2 = 18 cm
The square root of 81 is: ±9 (9 or -9)A square root is a number which, when multiplied by itself, equals the original number. As 9 x 9 = 81 and -9 x -9 = 81, the answer is plus or minus nine.