Question

what is the negative square root of 225?

Explanation:

Step1: Recall square - root definition

The square root of a number \(x\) is a value \(y\) such that \(y^2=x\). For \(x = 225\), we know that \(15\times15=225\) and \((- 15)\times(-15)=225\).

Step2: Identify the negative square - root

The positive square root of 225 is 15, and the negative square root of 225 is \(-15\).

Answer:

\(-15\)