In order to find the answer you will have to use PEMDAS and simplify making sure not to solve the equation fully.
[tex]2+3(5-2)^2[/tex]
Using PEMDAS:
[tex]2\times2=4[/tex]
[tex]2+3\times(5-4)[/tex]
[tex]5-4=1[/tex]
[tex]2+3\times4[/tex]
[tex]3\times4=12[/tex]
[tex]2+12[/tex]
Therefore your answer is "2+12."
Hope this helps.