Polynomial Test Set 2

Question 1:
Which of the following are like (similar) terms ?
I. 3 x
II. - 2 x2
III. 3 x y
IV. - 2 x2y
V. - 5 x
VI. - 4 x y
A:
B:
C:
D:
E:
Question 2:
Which of the following are in decending order?
I. 3 x5 - 2 x4 + 7 x3 - 2 x2 + 6 x - 7
II. - 7 + 6 x - 2 x2 + 7 x3 - 2 x4 + 3 x5
III. - 2 x4 - 2 x2 + 6 x + 7 x3 + 3 x5 - 7
A:
B:
C:
D:
E:
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:
B:
C:
D:
E:
Question 4:
Simplify the polynomial 3 x2 - 8 x + 5 - 2 x2 + 6 x + 7 , what is the coefficient of the base of x and the exponent (power) of 2?
A:
B:
C:
D:
E:
Question 5:
Simplify the expression x - [ y - ( y - x + 1 ) ]
A:
B:
C:
D:
E: