Practice problem
Let f(x)=x2f(x) = x^2f(x)=x2 and g(x)=x+2.g(x) = x + 2.g(x)=x+2. What is f(g(x))f(g(x))f(g(x))?
x2+4x^2 + 4x2+4
x2+2x^2 + 2x2+2
x2+2x+4x^2 + 2x + 4x2+2x+4
x2+4x+4x^2 + 4x + 4x2+4x+4
Type a concept, like “slope” or “photosynthesis”.
