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4x2 - 12x + 9 = 5; whence,

2x - 3 = ±√5, and

2x = 3 ±√5.

Therefore,

x = ½ (3 ±√5).

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โˆ™ 2010-06-15 17:39:33
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Q: 4x2 - 12x plus 9 equals 5?
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