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Key Concepts Quiz 9.1
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Use the document below to help answer questions 1 to 3:

Kinds of Polynomials Worked Example (12.0K)



1

Which of the following is a monomial?
A)2x2
B)3x + 2xy +5y – 3
C)7a – 3b
D)a2 + 6ab + b2
2

Which of the following is a binomial?
A)2x2
B)3x + 2xy +5y – 3
C)7a – 3b
D)a2 + 6ab + b2
3

Which of the following is a trinomial?
A)2x2
B)3x + 2xy +5y – 3
C)7a – 3b
D)a2 + 6ab + b2
4

What is the coefficient in the term 5xy2?

A)5
B)x
C)xy
D)2

Use the document below to help answer questions 5 and 6:

Adding or Subtracting Like Terms Worked Example (15.0K)



5

Which of the following are like terms?
a) 2xy
b) 3x2y
c) 5xy2
d) 4x2y2
A)All of them.
B)b) and c)
C)a) and d)
D)None of them.
6

Simplify by adding or subtracting like terms: 3ab + 5a2b – 4ab + 2ab2.
A)–ab + 7a2b2
B)–ab + 5a2b + 2ab2
C)6ab
D)6a2b2





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