1.
Find (4
x
2
+ 3
x
) + (7
x
2
– 5
x
– 6).
A.
11
x
2
– 8
x
– 6
B.
11
x
4
– 2
x
2
– 6
C.
9
x
– 6
D.
11
x
2
– 2
x
– 6
Hint
2.
Find the difference (-3
x
3
– 7
x
2
+ 5
x
– 4) – (6
x
2
– 8).
A.
–3
x
3
–
x
2
+ 5
x
- 12
B.
–3
x
3
– 13
x
2
+ 5
x
+ 4
C.
–3
x
3
– 13
x
2
+ 5
x
- 12
D.
-11
x
8
+ 4
Hint
3.
Find the sum (4
xy
2
– 3
x
2
y
– 5
xy
– 6) + (-5
xy
2
– 2
xy
+ 3).
A.
4
xy
2
– 8
x
2
y
– 7
xy
– 3
B.
4
xy
2
– 7
xy
– 3
C.
-
xy
2
– 3
x
2
y
– 3
xy
– 3
D.
-
xy
2
– 3
x
2
y
– 7
xy
– 3
Hint
4.
Determine whether the expression 5
x
3
y
3
–
x
2
y
2
is a polynomial.
A.
Yes.
B.
No, because there are two terms.
C.
No, because there are two variables.
D.
Cannot be determined from given information.
Hint
5.
Determine whether the expression
x
+
y
+
z
is a monomial, binomial, or trinomial.
A.
trinomial
B.
monomial
C.
Cannot be determined from given information.
D.
binomial
Hint