Question

Which of the following is/are true of the doing functions x2-169

Answer 1

$\begin{gathered} ^{X^2-169} \\ \end{gathered}$

Let's assume this equals cero

$\begin{gathered} X^2-169=0 \\ X^2=169 \\ X=\sqrt[]{169}=\pm13 \end{gathered}$

This is true:

Y = 0 when X = 13 or X = -13

in other words, the roots are 13 and -13