Spring 2018 | Professor Kate Poirier

# Category: Test #1 Review(Page 1 of 2)

Multiplication of Radicals, Chapter 6, Section 6.5 Page 528 Question #11

√2 * √10

=√(2* 10)

=√20

=√4 *√5

=2√5

Thanks to everyone who’s posted Test #1 Review questions and solutions. I haven’t taken a close look at all of them yet so you should read your classmates’ solutions carefully and post a comment if you have a question or notice an error.

I did notice that many of the questions involved solving radical equations. I’m glad to see these here, especially since they’re some of the longer solutions. I also noticed some of the other questions posted were shorter and easier than the questions you can expect to see on Thursday’s test.

Don’t forget to practice questions with longer solutions and from the other topics from sessions 1-9.

Also don’t forget that you can get help at tutoring. If you bring me a verification slip from the Atrium Learning Center, it will count toward your participation grade.

Section 6.7, Problem #13.

√x  +  4  =  6

– 4     – 4

√x  =  2

(√x)²  =  (2)²

x  =  4

Check: x  =  4

LS: √4  +  4  RS: =  6

LS: 2  +  4  RS: =  6

6  =  6  ✓

pg 527 Section 6.5

#20

(-6+11i)-(-9-12i)

= -6+11i+9+12i

= 3+23i

Section 6.8  #16  Page:555

Chapter 6, Section 6.7

Page 554, Question #17

Section 6.7  Solving Radical Equations

pg. 554 Question 16

Section 6.6 / Division of Radicals and Rationalization

Pg: 544

Question: 11

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