题目

The company was named Gates Hall a man named James Gates. A . in need of B . in search of C . with the help of D . in memory of 答案：D     已知关于x的方程x2 + 2x + a – 2 = 0.     (1)若该方程有两个不相等的实数根，求实数a的取值范围；     (2)当该方程的一个根为1时，求a的值及方程的另一根。