Twice the squareroot of a number is 12. find the number.
Let 'x' represent the number
2√x = 12
To remove the radical sign, we have to square both side,
(2√x)² = 12²
2²x = 12²
4x = 144
4x/4 = 144/4
x = 36
Therefore, twice the square root of 36 is equal to 12.
