Page 108 - Start Up Mathematics_7

Review Exercises

Multiple ChoiCe Questions
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2
1. The expression –5x yz is a:
(a) monomial (b) binomial (c) trinomial (d) none of these
2
2. The expression 2 – x + x is a:
(a) monomial (b) binomial (c) trinomial (d) none of these
2
3. The coefficient of x in 4xy z is:
2
2
(a) 4 (b) 4y (c) 4yz (d) 4y z
2
4. The numerical coefficient in –7xy is:
(a) 7 (b) –7 (c) –7x (d) 7y 2
2 3
5. The term 3x y z is of degree:
(a) 3 (b) 5 (c) 6 (d) 8
2
4
6. The degree of the polynomial x – 3x + xy + 4 is:
(a) 0 (b) 1 (c) 2 (d) 4
3
3
3
3
7. The sum of x – y and y – x is:
6
3
3
3
(a) 0 (b) 2x – 2y (c) 2y – 2x 3 (d) x – y 6
3
3
8. The value of the expression x + y when x = 1, y = –1 is:
(a) –1 (b) 0 (c) –2 (d) 2
solve Mentally
True or False
1. A symbol having fixed numerical value is a constant term.
2. A variable factor is also called a literal factor.
3. Two unlike terms cannot be added to get a single term.
4. The sum of two like terms is a like term with numerical coefficient equal to the sum of the
coefficients of the like terms.

2
2
2
5. The expression (3x – 2 – x) is less than (5x + x + 7) by (2x + 2x + 9).
Fill in the Blanks
1. The algebraic expression representing 2 diminished from 3 times x is ________.
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2. The algebraic expressions –3x y and y are __________________ terms.
3. While subtracting two like terms, their numerical coefficients are __________________.
2
4. The numerical coefficient in 5x y is __________________.
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2
3
5. The value of expression 462a – 512a + 171a – 98a + 1 when a = 0 is ____________.
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3
3
6. If x is subtracted from 2x – y , we get __________________.
7. Two polynomials each of degree 5 are added. The maximum and minimum degree of the
resulting polynomial is ________ and ________ respectively.
8. The area of a rhombus whose diagonals measure p and q is ________.

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