Grade 7 Math Simplifying Polynomials by using different methods

1. Simplifying
Polynomials
3x + 2x
2x+1
Quiz
TEACHER SARI PURDUE
GRADE 7 MATHEMATICS

2. Read the instructions or questions carefully.
Write your answers on your Math Quiz Booklet
This not an open notes exam.
Keep your answers for yourself
Calculators are not allowed
Questions will be shown for 1 minute for Part 1
and 2 minutes for Part 2
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2.
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4.
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6.
BEFORE WE
START

3. PART 1
IDENTIFYING
POLYNOMIALS
Choose the correct answer.
You have 1 minute to read and
answer each question.

4. IS THIS EXPRESSION A
POLYNOMIAL?
YES NO
Question # 1
x + 4x -
3 2 1
2

5. IS THIS EXPRESSION A
POLYNOMIAL?
YES NO
Question # 2
1
y-2

6. WHAT IS THE DEGREE OF
THE POLYNOMIAL BELOW?
5 6 7
Question # 3
5r + 7r - 12r - 3
6 2

7. HOW MANY TERMS DOES
THIS POLYNOMIAL HAVE?
3 4 5
Question # 4
g - 2g + 4
5 3

8. WHAT IS THE
THIRD TERM OF
THE POLYNOMIAL
IF EXPRESSED IN
STANDARD
FORM?
Question # 5
11x - 15x - 17- 5x
5 2 8
11X5 -5X
8
-15X
2

9. PART 2
SIMPLIFYING
POLYNOMIALS
You have 2 minutes to read and simplify
each polynomial.
Express the following in simplest form

10. Question # 6
x + 3x

11. Question # 7
6t - t + 1
2 2

12. Question # 8
-7x + 4x - 3x - 2x
3 8 3 8

13. Question # 9
4(6y+1)

14. Question # 10
7(-2x ) + x
2 2

15. Review all your answers.
Make sure all the signs/symbols, numbers, and
words are written correctly.
Take a photo of you answer sheet/s.
Send the photo/s you've taken to
hello@reallygreatsite.com. Make sure to include
your student number in your email subject.
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2.
3.
4.
Good
job!
HOW TO SEND YOUR ANSWERS

16. Let's Review
Your Answers
WE'LL START ONCE EVERYONE
SUBMITTED THEIR ANSWER SHEETS.

17. Question #1
Question #2
Question #3
Yes. It is a polynomial because the exponents of the
variables are positive.
No. The variable is in the denominator which makes the
exponent of the the variable negative.
6. The degree of the polynomial is the highest exponent of
the variable in a polynomial.
ANSWER KEY FOR PART 1

18. Question #4
Question #5
3. Term is a product of variable and constants. A single
variable or constant is also considered a term
The standard form of the polynomial is
-15x2
ANSWER KEY FOR PART 1
-5x + 11x - 15x - 17
8 5 2

19. ANSWER KEY FOR PART 2
Question #6
Question #7
Question #8
x + 3x = 4
(Combine like terms)
(Combine like terms)
6t - t + 1 = 5t + 1
2 2 2
-7x + 4x - 3x - 2x
3
= (-7x - 3x ) + (4x - 2x )
3 3 8 8
= -10x + 2x
3 8
= 2x - 10x3
8
8 3 8

20. ANSWER KEY FOR PART 2
Question #9
Question #10
4(6y + 1) = 24y + 4 (Multiply 4 to each term)
Multiply 7 to -2x
Combine like terms
7(-2x ) + x
2 2
= -14x + x
= -13x
2
2
2 2

21. Thank You!
See you next meeting for our
lesson on:
Evaluating Polynomials