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ladiesman217

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  • 11 months ago
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  1. ladiesman217
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    Part 1: Solve the following equation using one of the methods listed below. Show all work. (4 points) Part 2: Using complete sentences, explain why you chose the method you used. (2 points) Equation: 0 = x2 + 8x + 4 Methods: Completing the Square Factoring Quadratic Formula Graphing

    • 11 months ago
  2. ladiesman217
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    i cant figure it out

    • 11 months ago
  3. dusty
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    x^2 + 8x + 4 = 0 =====> let's take as (8/2)^2 (x + x^2 + 8x + (8/2)^2 - (8/2)^2 + 4 = 0 x^2 + 8x + (42)^2 - (4)^2 + 4 = 0 x^2 + 8x + 16 - 16 + 4 = 0 (x + 4)^2 - 16 + 4 = 0 (x + 4)^2 - 12 = 0 <===== completing the square (x + 4)^2 = 12 (x + 4) = +/- √(12) x = - 4 +/- √(4 * 3) x = - 4 +/- 2√(3) the reason i chose completing the square is because we can't use factoring. we can use quadratic formula, but it is longer. we can use graphing but it is more work.

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  4. ladiesman217
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    ok thnx

    • 11 months ago
  5. dusty
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    no problem (:

    • 11 months ago
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