Sagot :
[tex]Follow\ the\ rules\ of\ exponents\ where; \\ \\ \boxed{\boxed{(x)^{2}= x^{2} }} \\ \\ Solution; \\ \\ (13r)^{2}\to(13)^{2}(r)^{2}\to\boxed{\boxed{169r^{2}}} \\ \\ Hope\ it\ Helps:) \\ Domini[/tex]
So, you mean (13r)^2.
it is just like this:
13^2 x r^2
169 x r^2
=169r^2
(Take note: No parenthesis in this one!)
it is just like this:
13^2 x r^2
169 x r^2
=169r^2
(Take note: No parenthesis in this one!)