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x2+4x+4 = 25

x2+4x+4-25 = 0

x2+4x-21 = 0

(x+7)(x-3) = 0

x = -7 or x = 3

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โˆ™ 2011-03-25 14:17:55
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Q: What is x2 plus 4x plus 4 equals 25?
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