I do not know the question you are referring to but i would do all of them:
4-4
1.
3.5(-3n+4)
=
-10.5n+14
2.
(-3/5)(-8 + (5x/9) - 3
=
(24/5)-(15x/45) + (9/5)
=
(33/5) - (15x/45)
4-5
1.
63a-42b
=
7(9a+6b)
7×3(3a+2b)
=
21(3a+2b)
2.
Here are the possible outcomes of factorization forms.
32t-48
=
2(16t-24)
=
4(8t-12)
=
8(4t-6)
=
16(2t-3)
