2018/10/24预览页http://ijiaoshi.izhikang.com/sixtteacher/newjsp/tiku/preview/index.html#/grade=2&subject=2&id=f35e3a956c5041acafcb58cda634851c&sign=1&systemSign=1&ty2017~2018学年天津南开区初一上学期期中数学试卷选择题（共36分，每小题3分）填空题（共18分，每小题3分）爱智康1.【答案】C2.【答案】A3.【答案】A4.【答案】C5.【答案】A6.【答案】C7.【答案】C8.【答案】B9.【答案】B10.【答案】D11.【答案】B12.【答案】D13.【答案】±62018/10/24预览页http://ijiaoshi.izhikang.com/sixtteacher/newjsp/tiku/preview/index.html#/grade=2&subject=2&id=f35e3a956c5041acafcb58cda634851c&sign=1&systemSign=1&ty解答题（共46分）爱智康14.【答案】1．2．（）、（）、（）、（）（）1467615.【答案】7216.【答案】2.015⩽x<2.02517.【答案】±218.【答案】42019.【答案】．−11320.【答案】．1121.【答案】．x=6522.【答案】．x=123.【答案】（1）（2）3−3−2a2b2c21824.【答案】．−425.【答案】（1）（2）．c−a−226.【答案】（1）1．2．（2）（3）．648n(n+2)+1=(n+1)2201127.【答案】．x=±20032018/10/24预览页http://ijiaoshi.izhikang.com/sixtteacher/newjsp/tiku/preview/index.html#/grade=2&subject=2&id=f35e3a956c5041acafcb58cda634851c&sign=1&systemSign=1&ty爱智康
