题目

若（a+b）（a+b+2）=8，则a+b=_____． 答案：【答案】2或-4【解析】设a+b=y，所以原方程变化为：y2+2y﹣8=0，解得y=2或﹣4，所以a+b=2或﹣4，故答案为2或-4.Date: May lst-31stPlace: Sunshine Town MuseumA Butterfly ShowShow: All kinds of butterflies from different parts of the worldTime: Sat.-Sun. 9:00 am-5:00 pmTickets: Adults: ￥20 Students: ￥15 Free for children under 12Special gift!Come to the butterfly show on May 1st, and receive a free picture of the butterfly.【1】Mr. White wants to go to the show with his 11-year-old daughter, so he will have to pay ________.A.35 yuanB.20 yuanC.15 yuan【2】If you go to the butterfly show on May 1st, you can get ________.A.a free ticketB.a butterflyC.a gift