Question

The square of 9 less than a number is 3 less than the number. What is the number?

Answer 1

You have to create the equation.
The number is a variable (x).

`√(9) < x = 3 < x`

Answer 2

The number is 12 or 7.

Explanation:

According to question,

The square of 9 less than a number is 3 less than the number.

i.e.
`(x - 9)^2 = x - 3`

Solving the equation,

`x^2 - 18x + 81= x - 3`

`x^2 - 19x + 84 = 0`

`(x - 12)(x - 7) = 0`

`(x - 12)=0,(x - 7) = 0`

`x=12,7`

Therefore, The number is 12 or 7.