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x3 - 6x2 + 4x + 15 = (x - 3)(x - (3/2 + √29/2))(x - (3/2 - √29/2))

⇒ roots are x = 3, x = 3/2 + √29/2 (≈ 4.19), or x = 3/2 - √29/2 (≈ -1.19)

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โˆ™ 2011-08-15 08:24:31
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Q: What is the root of this polynomial x3-6x2 plus 4x plus 15?
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