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    3. 18x^2+15x-25=0
    18x^2+15x-25=0

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    0  Views: 343 Answers: 1 Posted: 13 years ago
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      1 Answer

      18x^2 + 15x - 25 = 0


      ( 6x - 5 ) (3x + 5 ) = 0  > simplify >     6x - 5 = 0             3x + 5 = 0


                                                                           + 5  +5                   -5    -5


                                                                        -------------            -----------------


                                                                        6x     =  5               3x      = -5


                                            divide by 6 on both sides            divide by 3 on both sides


                                                                           x = 5/6                    x   =  -5/3


      x = 5/6, -5/3

      13 years ago. Rating: 1
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