1.
Which of the following trinomials is a perfect square trinomial?
A.
x
2
+ 16
x
+ 16
B.
r
2
- 6
r
+ 36
C.
9
a
2
- 12
a
+ 4
D.
4
y
2
+ 10
y
+ 25
Hint
2.
What is the coefficient of the third term in the polynomial expansion for (
a
+
b
)
4
?
A.
4
B.
6
C.
10
D.
5
Hint
3.
What is the coefficient of the last term in the polynomial expansion for (
a
+
b
)
5
?
A.
10
B.
5
C.
6
D.
1
Hint
4.
What is the coefficient of the second term in the polynomial expansion for (
a
+
b
)
3
?
A.
4
B.
2
C.
3
D.
5
Hint
5.
What is the coefficient of the second term in the polynomial expansion for (
a
+
b
)
4
?
A.
3
B.
5
C.
4
D.
2
Hint