Question

|4x^2-12x+5|(5x^2-12x+4)>=0

Answer 1

$|4x^2-12x+5|(5x^2-12x+4) geq 0, \ |4x^2-12x+5| geq 0 forall xin R, \ 4x^2-12x+5=0, \ frac{D}{4} =16, \ x_1= frac{1}{2}=0,5 , x_2= frac{5}{2}=2,5; \ 5x^2-12x+4 geq 0, \ 5x^2-12x+4 = 0, \ frac{D}{4} =16, \ x_1= frac{2}{5}=0,4 , x_2=2; \ D>0, a>0, \ xin(-infty;0,4]cup[2;+infty)cup{0,5}$