A square root of a number is a value that, when multiplied by itself, gives the number. Specifically we are looking for integer results, therefore:
[tex]\begin{gathered} \sqrt[]{169}=\pm13 \\ since \\ 13\cdot13=169 \\ -13\cdot-13=169 \end{gathered}[/tex]Answers:
A. 13
D. -13
