請幫我計下喱幾條數

1)-6
2)8
1)-4m^2-36m

2007-08-28 15:16:37 補充：
You can use your calculator to find.

2007-08-28 18:42:46 補充：
It should be -4m^2十36m.I help you to put the answers in descend order and I mistyped it!!

2007-08-28 18:43:01 補充：
It should be -4m^2十36m.I help you to put the answers in descending order and I mistyped it!!

1).(-2)-(-4)+(-3)-5
=-2+4-3-5
=-6
2).(-2)[(-1)+(-3)]
=(-2)(-1-3)
=-2(-4)
=8
1).(9-m)(4m)
=-4m^2+36m