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Surds Answers

   1.  Simplify √32

  4√2

 

   2. Simplify √125

  5√5

 

   3. What is √28 simplified?

  2√7

 

   4. Calculate √7 x √7

  7

 

   5. What is √2 x √8?

  4

 

   6. 2√x = 16, calculate x

  2√64 = 16 so x = 16

 

   7. What is 3√2 x 3√2?

  18

 

   8. What is √144?

  12

 

   9. What is √11^2?

  11

   10. Calculate √45 + √45

  6√5