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Section 0-9 Square Roots and Simplifying Radicals Tuesday, September 20, 2011

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Page 1: Geometry Section 0-9 1112

Section 0-9Square Roots and Simplifying Radicals

Tuesday, September 20, 2011

Page 2: Geometry Section 0-9 1112

Essential Question

How do you evaluate square roots and simplify radical expressions?

Tuesday, September 20, 2011

Page 3: Geometry Section 0-9 1112

Vocabulary

1. Product Property:

2. Quotient Property:

Tuesday, September 20, 2011

Page 4: Geometry Section 0-9 1112

Vocabulary

1. Product Property: For two numbers a and b ≥ 0,

ab = ai b

2. Quotient Property:

Tuesday, September 20, 2011

Page 5: Geometry Section 0-9 1112

Vocabulary

1. Product Property: For two numbers a and b ≥ 0,

ab = ai b

2. Quotient Property: For two numbers a and b ≥ 0,

ab

=a

b

Tuesday, September 20, 2011

Page 6: Geometry Section 0-9 1112

Example 1Simplify.

a. 54 b. 126

Tuesday, September 20, 2011

Page 7: Geometry Section 0-9 1112

Example 1Simplify.

a. 54 b. 126

9i7

Tuesday, September 20, 2011

Page 8: Geometry Section 0-9 1112

Example 1Simplify.

a. 54 b. 126

9i7

9i 7

Tuesday, September 20, 2011

Page 9: Geometry Section 0-9 1112

Example 1Simplify.

a. 54 b. 126

9i7

9i 7

3 7

Tuesday, September 20, 2011

Page 10: Geometry Section 0-9 1112

Example 1Simplify.

a. 54 b. 126

9i7

9i 7

3 7

9i14

Tuesday, September 20, 2011

Page 11: Geometry Section 0-9 1112

Example 1Simplify.

a. 54 b. 126

9i7

9i 7

3 7

9i14

9i 14

Tuesday, September 20, 2011

Page 12: Geometry Section 0-9 1112

Example 1Simplify.

a. 54 b. 126

9i7

9i 7

3 7

9i14

9i 14

3 14

Tuesday, September 20, 2011

Page 13: Geometry Section 0-9 1112

Example 2Simplify.

a. 80x7y3z4 b. 25a12r8t11

Tuesday, September 20, 2011

Page 14: Geometry Section 0-9 1112

Example 2Simplify.

a. 80x7y3z4 b. 25a12r8t11

16i5ix6ixiy2iyiz4

Tuesday, September 20, 2011

Page 15: Geometry Section 0-9 1112

Example 2Simplify.

a. 80x7y3z4 b. 25a12r8t11

16i5ix6ixiy2iyiz4

4 x3 yz4 5xy

Tuesday, September 20, 2011

Page 16: Geometry Section 0-9 1112

Example 2Simplify.

a. 80x7y3z4 b. 25a12r8t11

16i5ix6ixiy2iyiz4

4 x3 yz4 5xy

25ia12ir8it10it

Tuesday, September 20, 2011

Page 17: Geometry Section 0-9 1112

Example 2Simplify.

a. 80x7y3z4 b. 25a12r8t11

16i5ix6ixiy2iyiz4

4 x3 yz4 5xy

25ia12ir8it10it

5a6r4 t 5 14

Tuesday, September 20, 2011

Page 18: Geometry Section 0-9 1112

Example 3Simplify.

a. 25

49 b. 81

16

Tuesday, September 20, 2011

Page 19: Geometry Section 0-9 1112

Example 3Simplify.

a. 25

49

25

49

b. 81

16

Tuesday, September 20, 2011

Page 20: Geometry Section 0-9 1112

Example 3Simplify.

a. 25

49

25

49

57

b. 81

16

Tuesday, September 20, 2011

Page 21: Geometry Section 0-9 1112

Example 3Simplify.

a. 25

49

25

49

57

b. 81

16

81

16

Tuesday, September 20, 2011

Page 22: Geometry Section 0-9 1112

Example 3Simplify.

a. 25

49

25

49

57

b. 81

16

81

16

94

Tuesday, September 20, 2011

Page 23: Geometry Section 0-9 1112

Example 4Simplify.

a. 7

5 b. 9

12

Tuesday, September 20, 2011

Page 24: Geometry Section 0-9 1112

Example 4Simplify.

a. 7

5

7

5i

5

5

b. 9

12

Tuesday, September 20, 2011

Page 25: Geometry Section 0-9 1112

Example 4Simplify.

a. 7

5

7

5i

5

5

7 55

b. 9

12

Tuesday, September 20, 2011

Page 26: Geometry Section 0-9 1112

Example 4Simplify.

a. 7

5

7

5i

5

5

7 55

b. 9

12

9

12i

12

12

Tuesday, September 20, 2011

Page 27: Geometry Section 0-9 1112

Example 4Simplify.

a. 7

5

7

5i

5

5

7 55

b. 9

12

9

12i

12

12

9 1212

Tuesday, September 20, 2011

Page 28: Geometry Section 0-9 1112

Example 4Simplify.

a. 7

5

7

5i

5

5

7 55

b. 9

12

9

12i

12

12

9 1212

9 4i312

Tuesday, September 20, 2011

Page 29: Geometry Section 0-9 1112

Example 4Simplify.

a. 7

5

7

5i

5

5

7 55

b. 9

12

9

12i

12

12

9 1212

9 4i312

18 312

Tuesday, September 20, 2011

Page 30: Geometry Section 0-9 1112

Example 4Simplify.

a. 7

5

7

5i

5

5

7 55

b. 9

12

9

12i

12

12

9 1212

9 4i312

18 312

3 32

Tuesday, September 20, 2011

Page 31: Geometry Section 0-9 1112

Example 5Simplify.

a. 4

1− 7 i1+ 7

1+ 7

Tuesday, September 20, 2011

Page 32: Geometry Section 0-9 1112

Example 5Simplify.

a. 4

1− 7 i1+ 7

1+ 7

4(1+ 7)

(1− 7)(1+ 7)

Tuesday, September 20, 2011

Page 33: Geometry Section 0-9 1112

Example 5Simplify.

a. 4

1− 7 i1+ 7

1+ 7

4(1+ 7)

(1− 7)(1+ 7)

4(1+ 7)

(1− 7)(1+ 7)Tuesday, September 20, 2011

Page 34: Geometry Section 0-9 1112

Example 5Simplify.

a. 4

1− 7 i1+ 7

1+ 7

4(1+ 7)

(1− 7)(1+ 7)

4(1+ 7)

(1− 7)(1+ 7)

4 + 4 7

1− 7 + 7 − 7

Tuesday, September 20, 2011

Page 35: Geometry Section 0-9 1112

Example 5Simplify.

a. 4

1− 7 i1+ 7

1+ 7

4(1+ 7)

(1− 7)(1+ 7)

4(1+ 7)

(1− 7)(1+ 7)

4 + 4 7

1− 7 + 7 − 7

4 + 4 7−6

Tuesday, September 20, 2011

Page 36: Geometry Section 0-9 1112

Example 5Simplify.

a. 4

1− 7 i1+ 7

1+ 7

4(1+ 7)

(1− 7)(1+ 7)

4(1+ 7)

(1− 7)(1+ 7)

4 + 4 7

1− 7 + 7 − 7

4 + 4 7−6

2 + 2 7−3

Tuesday, September 20, 2011

Page 37: Geometry Section 0-9 1112

Example 5Simplify.

b. 5

6 + 8 i6 − 8

6 − 8

Tuesday, September 20, 2011

Page 38: Geometry Section 0-9 1112

Example 5Simplify.

b. 5

6 + 8 i6 − 8

6 − 8

5(6 − 8)

(6 + 8)(6 − 8)

Tuesday, September 20, 2011

Page 39: Geometry Section 0-9 1112

Example 5Simplify.

b. 5

6 + 8 i6 − 8

6 − 8

5(6 − 8)

(6 + 8)(6 − 8)

30 − 5 8

6 + 8 − 8 − 8Tuesday, September 20, 2011

Page 40: Geometry Section 0-9 1112

Example 5Simplify.

b. 5

6 + 8 i6 − 8

6 − 8

5(6 − 8)

(6 + 8)(6 − 8)

30 − 5 8

6 + 8 − 8 − 8

30 − 5 4i236 − 8

Tuesday, September 20, 2011

Page 41: Geometry Section 0-9 1112

Example 5Simplify.

b. 5

6 + 8 i6 − 8

6 − 8

5(6 − 8)

(6 + 8)(6 − 8)

30 − 5 8

6 + 8 − 8 − 8

30 − 5 4i236 − 8

30 −10 228

Tuesday, September 20, 2011

Page 42: Geometry Section 0-9 1112

Example 5Simplify.

b. 5

6 + 8 i6 − 8

6 − 8

5(6 − 8)

(6 + 8)(6 − 8)

30 − 5 8

6 + 8 − 8 − 8

30 − 5 4i236 − 8

30 −10 228

15 − 5 214

Tuesday, September 20, 2011

Page 43: Geometry Section 0-9 1112

Problem Set

Tuesday, September 20, 2011

Page 44: Geometry Section 0-9 1112

Problem Set

p. P20 1-20 all

“Hold yourself responsible for a higher standard than anyone else expects of you. Never excuse yourself.” - Henry Ward Beecher

Tuesday, September 20, 2011