-12x^3 + 4x^2 + 9x - 3= -4x²(3x - 1) + 3(3x - 1) = (3x - 1)(-4x² + 3) = -(3x - 1)(4x² - 3) =
-(3x - 1)(2x - √3)(2x + √3)
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-12x^3 + 4x^2 + 9x - 3= -4x²(3x - 1) + 3(3x - 1) = (3x - 1)(-4x² + 3) = -(3x - 1)(4x² - 3) =
-(3x - 1)(2x - √3)(2x + √3)