Answers

2014-11-30T08:49:13+05:30
2(1)(-2) + 2(1)(-2)2 + 3(1)(-2)
(-4) + (-8) + (-6)
(-18)
0
2014-11-30T08:55:40+05:30
2(1)'(-2) + 2(1)(-2)'2 + 3(1)(-2)
2(-2)  + (-4)'2 + (-6)
1/2 +16 +(-6) 
1/2 + 10
21/2
0
2(1)(-2) + 2(1)(-2)2 + 3(1)(-2)
(-4) + (-8) + (-6)
(-18)