oct15/09dmciprecal30s

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oct15/09dmciprecal30s

  1. 1. 1 General Solution to Quadratics by  Completing the Square (building the quadratic formula) Solve for x by completing the square ax2  + bx +c = 0
  2. 2. 2
  3. 3. 3 If you remember from our quadratics unit, we can  find the x value at the vertex, and the axis of  symmetry by  h =  The quadratic formula can be represented by two  fractions. The first part is the h value. The second part is the horizontal distance from the  axis of symmetry to the x intercepts in both the  positive  and negative direction.
  4. 4. 4
  5. 5. 5 Ex. Sove   x2  + 3x ­ 9 = 0
  6. 6. 6

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