lesson 88 january 15, 2013€¦ · lesson 88 january 15, 2013 when you solve these problems you...

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Lesson 88 January 15, 2013

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Page 1: Lesson 88 January 15, 2013€¦ · Lesson 88 January 15, 2013 When you solve these problems you need to also "check" your answer. Is your answer allowed? This question should ring

Lesson 8­8 January 15, 2013

Page 2: Lesson 88 January 15, 2013€¦ · Lesson 88 January 15, 2013 When you solve these problems you need to also "check" your answer. Is your answer allowed? This question should ring

Lesson 8­8 January 15, 2013

Page 3: Lesson 88 January 15, 2013€¦ · Lesson 88 January 15, 2013 When you solve these problems you need to also "check" your answer. Is your answer allowed? This question should ring

Lesson 8­8 January 15, 2013

Page 4: Lesson 88 January 15, 2013€¦ · Lesson 88 January 15, 2013 When you solve these problems you need to also "check" your answer. Is your answer allowed? This question should ring

Lesson 8­8 January 15, 2013

Page 5: Lesson 88 January 15, 2013€¦ · Lesson 88 January 15, 2013 When you solve these problems you need to also "check" your answer. Is your answer allowed? This question should ring

Lesson 8­8 January 15, 2013

Page 6: Lesson 88 January 15, 2013€¦ · Lesson 88 January 15, 2013 When you solve these problems you need to also "check" your answer. Is your answer allowed? This question should ring

Lesson 8­8 January 15, 2013

Page 7: Lesson 88 January 15, 2013€¦ · Lesson 88 January 15, 2013 When you solve these problems you need to also "check" your answer. Is your answer allowed? This question should ring

Lesson 8­8 January 15, 2013

Because there is the possibility of an extraneous solution you have to check every solution you find.

Page 8: Lesson 88 January 15, 2013€¦ · Lesson 88 January 15, 2013 When you solve these problems you need to also "check" your answer. Is your answer allowed? This question should ring

Lesson 8­8 January 15, 2013

Page 9: Lesson 88 January 15, 2013€¦ · Lesson 88 January 15, 2013 When you solve these problems you need to also "check" your answer. Is your answer allowed? This question should ring

Lesson 8­8 January 15, 2013

Page 10: Lesson 88 January 15, 2013€¦ · Lesson 88 January 15, 2013 When you solve these problems you need to also "check" your answer. Is your answer allowed? This question should ring

Lesson 8­8 January 15, 2013

Page 11: Lesson 88 January 15, 2013€¦ · Lesson 88 January 15, 2013 When you solve these problems you need to also "check" your answer. Is your answer allowed? This question should ring

Lesson 8­8 January 15, 2013

When you solve these problems you need to also "check" your answer.  Is your answer allowed?  This question should ring through your mind.

This happens because say you get an x that makes a square root negative.  This isn't allowed so you may need to adjust your solution accordingly.

Page 12: Lesson 88 January 15, 2013€¦ · Lesson 88 January 15, 2013 When you solve these problems you need to also "check" your answer. Is your answer allowed? This question should ring

Lesson 8­8 January 15, 2013

Page 13: Lesson 88 January 15, 2013€¦ · Lesson 88 January 15, 2013 When you solve these problems you need to also "check" your answer. Is your answer allowed? This question should ring

Lesson 8­8 January 15, 2013

Homework:

p. 633 #28­44(even), 47­49, 54­57, 71­73