有數學唔識做？？

1.(-7)(1.5)分之(1.5)(6)
= -9/10.5
= -7/6

2.(-8)x(-6)x(-2)分之(-4)x(-3)
=12/-96
=-1/8

3. 6p+3-2p+5
=6p-2p+3+5
=4p+8

4.12a-3b-11a-4b+7a
=12a-11a-+7a-3b-4b
=8a-7b

-10.5/9
=-105/90
=-7/6
(2)
-96/12
=-8
(3)
6p+3-2P+5
=6p-2p+3+5
=4p+8
(4)
12a-3b-11a-4b+7a
=12a-11a+7a-3b-4b
=8a-7b

1)-10.5分之9
2)-96分之12等於-8
3)6p-2p+3+5
=2p(3+5)+(3+5)*1
=(3+5)(2p+1)
4)12a-11a+7a-3b-4b
=a(8)-b(-7)
=8a-7b

1. 1.5 x 6
. ----------
. 1.5 x -7

. 9
= ---
. -10.5

. 6
= - ---
. 7

2. 12
. -----
. - 96

. 1
= - -----
. 8

3. 6p-2p+3+5
= 4p+8

4. 12a-11a+7a-3b-4b
=8a-7b

1)
-10.5/9
= -1 1/6

2)
-96/12
=-8

3)
4p+8

4)8a-7b