How do I add two numbers with exponents?

I know when you multiply something like x^3 times x^4 you get x^7, but wha if you're adding x^3 + x^4?How do I add two numbers with exponents?
the exponents take precedence over the addition due to the order of operations.





x^3 + x^4 = x^3 + x^4 it doesn't simplify.





x^3 + x^3 = 2x^3





2x^4+ 8x^4 = 10x^4





make sense?How do I add two numbers with exponents?
u go like this


written out:





x^3 + x^4


-x + -x


-------------- you get rid of x and u have just ^3 + ^4





^3 + ^4 = ^7





so x = ^7








im pretty sure thats it
x^4+x^3