Aim: How do we multiply and divide radicals? Objectives: SWBAT 1. Perform operat

Question

Aim: How do we multiply and divide radicals? Objectives: SWBAT 1. Perform operations on radicals like adding and subtracting Vocabulary: Radicals, radicand, sum, difference, product and quotient Homework # : Hand out multiplying and dividing binomials with Radicals) 2. Solve regent's questions involving radicals. (multiplication of Do Now: A. Simplify each expression and write your answer in simplest radical form: 1. 512-3 27 2. (S/12)8/27) 3. S/128-27) Conclusion: Write in a complete sentence explaining how these questions are similar and different.Make sure to explain all addition and multiplication. Development/Motivation: A. Warn-up: Operations with Radicals( WRITE YOUR ANSWER IN SIMPLEST radical form) 7, (2x + 3) (2x-3) = 8. (2v5+3)(2S-3) 10. (4-5/3) (4 + 5V5- 9.(4-5x)(4+5x) - 12. (3-4V5) - 11. (3-4x) 15 12 5 3 14. 13.(2+/5)(6-245)

Explanation / Answer

1) 5 sqrt 12 - 3 sqrt 27

5 * 2 sqrt 3 - 3* 3 sqrt 3

= 10 sqrt 3 - 9 sqrt 3

= sqrt 3

2) ( 5 sqrt 12 ) ( 3 sqrt 27 )

15 sqrt 324

= 15* 18

= 270

3) 5 sqrt 12 ( 3 - sqrt 27 )

15 sqrt 12 - 90

30 sqrt 3 - 90

30 ( sqrt 3 - 3 )

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