I'm thinking of a number. This

number is 12 less than its square.

What could my number be?

4

Step-by-step explanation:

n represents the number

n = - 12 + n2 reorder terms

n = n2 - 12 subtract n from both sides

0 = n2 - n - 12 FOIL

0 = (n - 4) (n + 3)

(-3,4)

So the only 2 numbers that could be 12 less than its square are - 3 and 4, but I am pretty sure that they want positive numbers, so I would go with 4.

Is it 4? Because the square of it is 16 and 16-12 = 4