What is 3 to the power of 5 +9 to the power of 2

Thanks anonymous,  that may be the intended meaning but I will use  PEDMAS and assume that this is the meaning.

$${{\mathtt{3}}}^{{\mathtt{5}}}{\mathtt{\,\small\textbf+\,}}{{\mathtt{9}}}^{{\mathtt{2}}} = {\mathtt{324}}$$

What is 3 to the power of 5 +9 to the power of 2

I assume you mean 3^[(5+9)^2]

Start by adding the addends in the round paranthesis, 5+9=14:

3^(14^2)

Multiply 14 by itself: 14^2= 196

3^196 

Multiply 3 with itself 196 times. Since this is done by hand, you better have a few clean pages in your notebook:

3^196= 

3279185047850305794305942247355304034928808057449314765118209404186327048164224481412156778321 ≈ 3,3*10^93

You could also interpret it as (3^5+9)^2 which = 63504 but Melody's is more likely.