If f(x)=3x−5f(x) = 3x - 5f(x)=3x−5 and g(x)=x+2g(x) = x + 2g(x)=x+2, what is (f⋅g)(x)(f \cdot g)(x)(f⋅g)(x)?
3x2−103x^2 - 103x2−10
3x2+6x−53x^2 + 6x - 53x2+6x−5
3x2+11x−103x^2 + 11x - 103x2+11x−10
3x2+x−103x^2 + x - 103x2+x−10