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Twice the squareroot of a number is 12. find the number.

Sagot :

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.