Hi Melody here is the problem: 5 ³√625 + ³√135
625 = 53*5 so its cube root is 5√5
135 = 33*5 so its cube root is 3√5
Therefore 5 ³√625 + ³√135 = 5*5√5 + 3√5 = 25√5 + 3√5 = 28√5
RoMeMaJo8, why won't you write a question for me?
the 3 after the plus sign does not work on the calculator.