Given f(x)=2xf(x) = \dfrac{2}{x}f(x)=x2 and g(x)=x+3g(x) = x+3g(x)=x+3, what is (f∘g)(x)(f \circ g)(x)(f∘g)(x)?
2x+3\dfrac{2}{x} + 3x2+3
2x+3\dfrac{2}{x+3}x+32
2x+6x\dfrac{2x + 6}{x}x2x+6
x+32\dfrac{x+3}{2}2x+3