This kind of line or handicap value is often majorly common in Asian betting. This handicap value means that the underdog team at the start of the match gets a +1.5 goal advantage. In order tor the stronger team to win the match and the bet, they should score more than 2 goals. If you place your bet on the underdog team instead then the team must not lose. If they lose they should lose with only 1 goal not more than that.