1. The problem statement, all variables and given/known data Express the following as A2+B2: 3[√3+√5+√7]2 2. Relevant equations 3. The attempt at a solution I expanded it to 45 + 6√15 + 6√21 + 6√35 Should I collect like terms (the multiples of 6)? I don't know how to proceed from here. Thanks in advance for any help.