Answers

2014-05-21T12:14:12+08:00
(x^2 - 4)/x -4x/(x^2 - 4) + 3 = 0

(x^2 - 4)^2 - 4x^2 + 3(x)(x^2 - 4) = 0

x^4 - 8x^2 + 16 - 4x^2 + 3x^3 - 12x = 0
x^4 + 3x^3 + 4x^2 - 12x + 16 = 0.
x^4 + x^2(3x + 4) -4(3x - 4) = 0

do it. hahaha
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