-4x^2+12x-9<0 поможите

Question

-4x^2+12x-9<0<br> поможите

Answer 1

4x^2-12x+9<0 Y=4x^2-12x+9 Y=0 4x^2-12x+9=0 D=144-144=0, d>0 X=-b/2a X=12/8 X=1,5