Practice problem
Let f(x)=x+1f(x) = x+1f(x)=x+1 and g(x)=x2−4xg(x) = x^2 - 4xg(x)=x2−4x. What is (f⋅g)(x)(f\cdot g)(x)(f⋅g)(x)?
x3+4x2−4x^3 + 4x^2 - 4x3+4x2−4
x3−3x2−4xx^3 - 3x^2 - 4xx3−3x2−4x
x2−3x−4x^2 - 3x - 4x2−3x−4
x2+4x−4x^2 + 4x - 4x2+4x−4
Type a concept, like “slope” or “photosynthesis”.
