# How do you write the mathematical expression for "3 less than the Square of a number p"?

May 1, 2016

${p}^{2} - 3$

#### Explanation:

We are told that the number being referred to is called $p$.

The square of the number is ${p}^{2}$

3 less than this means subtract 3 from ${p}^{2}$

Hence ${p}^{2} - 3$

Note that the following would mean something completely different:
The square of 3 less than $p$,

This would be written as: ${\left(p - 3\right)}^{2}$