(x^3-3x^2)+(2x-6)>0 factor (x^2)(x-3)+(2)(x-3)>0 we see a common factor of (x-3) so undistribute that (x-3)(x^2+2)>0 set each greater than zero x-3>0 x>3
x^2+2>0 x^2>-2 true for all real numbers because the square of any real number is always 0 or positive
