1. The problem statement, all variables and given/known data Prove that summation k^3 from k=1 to k=n is equal to (summation of k from k=1 to k=n)^2. 2. Relevant equations Induction Principle 3. The attempt at a solution It is true for k=1, so we must assume it is true for k=n-->then prove true for k=n+1. Where do I go from here?