solving quadratic equations using the quadratic formula: Simplify the expression.Check your answer

Math 012 Quiz 5

Professor: Dr. Mary Dereshiwsky

Name________________________________

Instructions:

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The quiz is worth 100 points. There are 10 questions each worth 10 points.

This quiz is open book and open notes, and you may take as long as you like on it

provided that you submit the quiz no later than the due date posted in our course schedule

of the syllabus. You may refer to your textbook, notes, and online classroom materials,

but you may not consult anyone.

You should show all of your work to receive full credit. If you do not show work, you

may earn only partial or no credit at the discretion of the professor.

Please type your work in your copy of the quiz, or if you prefer, create a document

containing your work. Scanned work is also acceptable. Be sure to include your name in

the document. Review instructions for submitting your quiz in the Quizzes and Exams

Conference.

If you have any questions, please contact me by e-mail (mary.dereshiwsky@umuc.edu).

At the end of your quiz you must include the following dated statement with your name

typed in lieu of a signature. Without this signed statement you will receive a zero.

I have completed this quiz myself, working independently and not consulting anyone except

the instructor. I have neither given nor received help on this quiz.

Name:

Date:

1) Simplify the expression. Check your answer by raising it back to the 2nd power.

144×18 y14

Math 012

Quiz 5

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2) Simplify the expression. Check your answer by raising it back to the 3nd power.

3 −125×12 y15

3) Simplify the expression. Check your answer by raising it back to the 4th power.

4 81x 4 y16 z 28

4) Perform the indicated operations and simplify the result.

2 45 − 3 5 − 4 125

Math 012

Quiz 5

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5) Perform the indicated operations and simplify the result.

( 4 3 − 3)( −5 3 + 3)

6) Perform the indicated operations and simplify the result.

(

7 2− 3

)

2

Math 012

Quiz 5

7) Rationalize the denominator and simplify if possible:

56

7

8) Rationalize the denominator and simplify if possible:

2

−3 + 2 3

Page 4

Math 012

Quiz 5

Page 5

9) Rationalize the denominator and simplify if possible:

4− 2

5+ 2 2

10) Use radical notation to rewrite the expression. Simplify if possible:

( 64) 2 + ( −27 )

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2

3

End of quiz: please remember to sign and date the statement in the box on the first page of the

quiz.