Learn the rules for adding exponents. When adding the same bases and the same exponents then you can multiply 2 times the base and exponent. For example, 4^3 + 4^3 = 2 ( 4)^3 If the exponents and base are not the same then you have to work with each number individually. 4^2 + 3^3 = 4 x4 + 3X3X3 = 16 + 27 = 43