F(x) = x2 + 3

is it an even odd function, both or neither?

Both because it depends on the number you put in there

Step-by-step explanation:such as 1^2 +3=4 an even number 2^2+3=7 an odd number

typically if you want , you would actually put questions here for us to you. but hey, that's just me. maybe someone will magically answer the questions for you without knowing what they are.