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Anonymous
B squared -4ac is the discriminant. you get 0, which means it will have one rational solution.
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4x(4x^2 + 3x + 1)
2(x - 1)(2x + y)
(2x + 1)(2x + 1) or (2x + 1)2 so x = -0.5
4x2 + 1 + x2 + 3 = 5x2 + 4
X=1/2