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The Brainliest Answer!
by factoring:;

roots; r=2 ; r=8;
checking intervals:..(r-2)(r-8)          <0
r<2....                      (-)(-)=+; +>0....does not satisfy the ineaqualty;
2<r<8..                    (+)(-)=- ; -<0..  satisfy the ineq; 
r>8                           (+)(0)=0; 0<0..does not satisfy the ineq;

the solution set:{x/ 2<r<8};

-------I---------o......r.............o-------; this would be your plot in domain
        0           2                    8

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