Answers

2015-07-14T22:02:31+08:00
1.X2+5x+4=0
2.2x2+x-21=0
3.4x2+4x+1
4.X2-2-2=0


0
2015-07-14T22:32:32+08:00
1. 9
2.169
3.0
4.8
5. 36*16 (paki multiply nkakatmd imental)
0