Question

one of the solution to this problem below is 8. what is the other solution? C^2-64=0 ( please show your work )

Answer 1

${c}^{2} - 64 = 0$
This can also be represented as:
${c}^{2} - {8}^{2} = 0$
Using difference of two squares;
$(c - 8)(c + 8) = 0$
$c - 8 = 0 \: or \: c + 8 = 0 \\ \\ c = 8 \: or \: c = - 8$



Hope I helped? ☺️