sqrt(12)sqrt(6)/sqrt(8) Simplified, we have: sqrt(72)/sqrt(8) The top can be written as sqrt(8 * 9) which is sqrt(8) * sqrt(9) So we have: sqrt(8) * sqrt(9)/sqrt(8) Cancelling the sqrt(8), we have: sqrt(8) * sqrt(9)/sqrt(8) sqrt(9) = 3