Determine the set of all real numbers xxx such that x2−7x+12x+4<0\frac{x^2 - 7x + 12}{x + 4} < 0x+4x2−7x+12<0.
x<−4x < -4x<−4 or 3<x<43 < x < 43<x<4
−4<x<3-4 < x < 3−4<x<3 or x>4x > 4x>4
x<−4x < -4x<−4 or x>4x > 4x>4
x<−4x < -4x<−4 or 3<x3 < x3<x