Answer:
The number is 4 .
Explanation:
Given:
When 12 is subtracted from the square of a number, the result is 4 times the number.
Now, to find the solution:
Let the number be
.
So, according to question when 12 is subtracted from the square of a number, the result is 4 times the number:

Adding both sides by 12 we get:

Using square root on both sides we get:

Therefore, the number is 4.