f(x) = 4x^319x^2+19x+6
Since f(3) = 0, x3 is a factor. By synthetic division,
34 19 19 6
......12 21 6

...4 7 2  0
So, another factor is 4x^27x2.
Solve 4x^27x2 = (4x+1)(x2) = 0
x = 1/4, 2
Answer: x = 1/4, 2, 3
10/19/2013

Robert J.
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