Simplify and express answers using positive exponents only. 1-3 6x y 6-5 4x y 6x-1-3 6-5 4x y = (Use positive exponents only.) Add. 6 - + 5 X X-8 6 - + 5 X X-8 || = (Simplify your answer.) Write using radical notation. Then simplify, if possible. - 1331 2/3 Select the correct answer below and, if necessary, fill in the answer box to complete your choice. A. - 1331 2/3 = B. The expression has no real solution.