Question

х+6:(5х+10)(х-6)>=0

Answer 1

(х+6):(5х+10)(х-6)>=0
x>=-6 (черная точка на графике)
x>-2(выколотая точка )
x>6( выколотая точка)

                                                                  |----------------------------------->
                                           |---------------------------->
              |----------------------------------------------------------->                                                
=======0=============0===========0======
             -6                          -2                     6