Find R(x)=f(x)g(x){"versiоn":"1.1","mаth":"R(x)=f(x)g(x)"} where f(x)=6x+609x+63{"versiоn":"1.1","mаth":"f(x)=6x+609x+63"} аnd g(x)=x2+16x+60x2+15x+56{"versiоn":"1.1","math":"g(x)=x2+16x+60x2+15x+56"}. Show your steps. Simplify your answer.