Redo Requirement for Chapter 12 Name ____________________
If you are one of the students who must redo the Chapter 12 Test, you need to do the
following problems, showing all work. Show the completed problems to me and check it.
Also, write up your analysis of the mistakes you made on your first attempt and correct
the problems you missed. Then, I’ll write you a Testing Center ticket to try again.
Simplify.
1a. 3 15
12 60
a
a
+
+ 1b. 17 34
5 10
m
m
−
−
2a. x x x
x
x
3 2
2
6 4 24
4
12
+ − −
+
−
2b. x y
x xy y
2 2
2 2
9
3 15 18
−
− +
Perform the operations and simplify.
3a.
32
22
mm
+
−+
3b.
−
−
−
+−
28
2
3
7
3
2
a
a
a
4a.
52
21
yy
−
+−
4b. 22
75
693
xxxx
−
−+−
5a. 2
2
5544
21
vvv
vv
+−+
⋅
−−
5b.
22
23521
2749
nnmn
mnn
−−⋅
−
6a. 9
16
63
18
5
84
2
2
2
2
ab
a
a
ab
a
a
+
+
÷
−
−
6b. 2
2
1243103
269
mmm
mm
+++
÷
−−
Solve.
7a. 4
3
12
9
2 2
x
x
x
x
−
=
−
7b. 4
2 11
2
8n n+=−
8a. 12
2
4
5 10
2
x
x x
x+=+
+ 8b. a
a
a
a
2
2
4
1
1
+
−
=−
9a. 14
2
6
2
++=
+
+m
m
m 9b. 3
2
5 8 10
2
2
x x
x
x
x
++ =
+
+
