How to factor with 2 variable: 20w2 + 100w + 40

I need to complete factor this problem ad show the steps that I followed to do. I need it by 6/5/2013.
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2 Answers

20x^2 +100x+40=0

or x^2 +5x -2=0

x=0.3722813 or -5.3722813
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Show me the steps.
by Level 1 User (140 points)

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