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## ladiesman217 2 years ago medals & fans rewarded

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1. ladiesman217

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

2. ladiesman217

i cant figure it out

3. dusty

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.

4. ladiesman217

ok thnx

5. dusty

no problem (:

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