Polynomial Test Set 2
Question 1:
Which of the following are like (similar) terms ?
I. 3 x
II. - 2 x
^{2}
III. 3 x y
IV. - 2 x
^{2}
y
V. - 5 x
VI. - 4 x y
A:
I and V are like terms
B:
III and VI are like terms
C:
I and V are like terms and III and VI are like terms
D:
IV and VI are like terms
E:
III and IV are like terms
Question 2:
Which of the following are in decending order?
I. 3 x
^{5}
- 2 x
^{4}
+ 7 x
^{3}
- 2 x
^{2}
+ 6 x - 7
II. - 7 + 6 x - 2 x
^{2}
+ 7 x
^{3}
- 2 x
^{4}
+ 3 x
^{5}
III. - 2 x
^{4}
- 2 x
^{2}
+ 6 x + 7 x
^{3}
+ 3 x
^{5}
- 7
A:
I is in decending order
B:
II is in decending order
C:
III is in decending order
D:
I and II are in decending order
E:
II and II are in decending order
Question 3:
Which of the followings are true?
I. When removing parentheses preceded by a plus sign, do not change the sign of the enclosed terms.
II. When removing parentheses preceded by a minus, change the sign of each enclosed term.
III. When more than one set of grouping symbols is used, remove one set at a time, beginning with the innermost one.
A:
I is true
B:
II is true
C:
I, II and III are all true
D:
I and II are true
E:
II and III are true
Question 4:
Simplify the polynomial 3 x
^{2}
- 8 x + 5 - 2 x
^{2}
+ 6 x + 7 , what is the coefficient of the base of x and the exponent (power) of 2?
A:
-2
B:
1
C:
2
D:
3
E:
6
Question 5:
Simplify the expression x - [ y - ( y - x + 1 ) ]
A:
- 1
B:
1
C:
- 2 x + 1
D:
2 y + 1
E:
2 x - 2 y + 1