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Lsn?4?4:?Group?Work
                            Roots
Even?Roots:? The?number?under?the?radical?must?be?positive.
             The?answer?must?be?positive.

   examples:


Odd?Roots:?? The?odd?root?of?a?positive?number?is?positive.
             The?odd?root?of?a?negative?number?is?negative.

   examples:

Find?each?root:




                      .03                              10




                   5                                   ?1


                      ?4                                 10x


                      5                                 ?2


                  1




                                                               1
Roots?of?Equations

               have?2?real?roots.         examples:

              have?1?real?root.



Solve?each?equation:




                             9.?Find?the?Perimeter:
            x=2




            y=10

                                     10.?If?            find?x.
            x=?4
                                                 x=20




   8)??The?volume?of?a?cube?is?125?cu.?cm.?
   Find?the?length?of?an?edge.




                                                                  2
Simplifying?Radicals




                       3
Examples:??Simplify?Completely
1.




2.




3.




4.




5.




                                      4
6.
      10.




7.
      11.




8.     12.




      13.
 9.




             5

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Algebra2 Notes 2 1

  • 1. Lsn?4?4:?Group?Work Roots Even?Roots:? The?number?under?the?radical?must?be?positive. The?answer?must?be?positive. examples: Odd?Roots:?? The?odd?root?of?a?positive?number?is?positive. The?odd?root?of?a?negative?number?is?negative. examples: Find?each?root: .03 10 5 ?1 ?4 10x 5 ?2 1 1
  • 2. Roots?of?Equations have?2?real?roots. examples: have?1?real?root. Solve?each?equation: 9.?Find?the?Perimeter: x=2 y=10 10.?If? find?x. x=?4 x=20 8)??The?volume?of?a?cube?is?125?cu.?cm.? Find?the?length?of?an?edge. 2
  • 5. 6. 10. 7. 11. 8. 12. 13. 9. 5