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    how to solve quadratic equations?

    <font size="2" face="Arial">Help in solving quadratic equations                                   </font>

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    0  Views: 329 Answers: 1 Posted: 14 years ago
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      1 Answer

      Solving Quadratic Equation.


      Ex.  x^2 + 7x + 10 


             ( x + 2 ) ( x + 5 ) >  Think of  F O I L.


             F = 1ST > x*x = x^2


             O = Outter > x*5 = 5x


              I =  Inner > 2*x = 2x


             L = Last > 2*5 = 10


      So, x^2 + 5x + 2x + 10 = 


                       5x + 2x = 7x


              x^2 + 7x + 10


       


               

      14 years ago. Rating: 0
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