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4.5 solve by finding square roots

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4.5 solve by finding square roots

  1. 1. Simplifying Radicals The Algebra of Solving Equations
  2. 2.  Test the radicand (number inside the radical) for divisibility by numbers that are perfect squares.  Rewrite the radicand as a product of a perfect square and another number.  Take the square root of the perfect square and write the result in front of the radical.
  3. 3. 20 2 2 4 2 3 9 2 4 16 2 5 25 2 6 36 4 5 2 5
  4. 4. 48 2 2 4 2 3 9 2 4 16 2 5 25 2 6 36 16 3 4 3
  5. 5. 27 49 2 2 4 2 3 9 2 4 16 2 5 25 2 6 36 9 3 49  3 3 7 27 49  2 7 49
  6. 6. 5 2 3 7 5 3 2 7   15 2 7  15 14
  7. 7. 3 12 2 15 3 4 3 2 15  3 2 3 2 15  6 3 2 15 12 45 12 9 5 36 5
  8. 8. 13 2 13 2  13 2 2 2  26 4 26 2
  9. 9. 21 6 21 6  21 6 6 6  126 36 126 6 9 14 6  3 14 6 14 2
  10. 10. 2 81x  2 81 0x     9 9 0x x   9, 9x  
  11. 11. 2 81x  9, 9x   2 81x   9x  
  12. 12. 2 40x  2 10, 2 10x   2 40x   2 10x  
  13. 13. 2 7 43x   5 2, 5 2x   2 50x   5 2x   2 50x 
  14. 14. 2 4 11 59x   2 3, 2 3x   2 12x   2 3x   2 4 48x  2 12x 
  15. 15.   2 7 60x   7 2 15, 7 2 15x      2 7 60x    7 2 15x    7 2 15x  
  16. 16. p. 269 # 3 - 10, 22 - 33, 39, 40, 42

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