You can put this solution on YOUR website! by foiling, we determine that .... (2 square root 2 + square root 3)(square root 2 + 5 square root 3)= 4 + 10sqr-rt(6) + 1sqr-rt(6) + 15 = 19 + 11 sqr-rt(6)
Feel free to comment with any questions or concerns. -- David