Practice problem
Let f(x)=x2+3f(x) = x^2 + 3f(x)=x2+3 and g(x)=2x+1g(x) = 2x + 1g(x)=2x+1. What is (f−g)(x)(f-g)(x)(f−g)(x)?
x2+2x+4x^2 + 2x + 4x2+2x+4
x2+5x+1x^2 + 5x + 1x2+5x+1
x2−2x+2x^2 - 2x + 2x2−2x+2
x2+2x−2x^2 + 2x -2x2+2x−2
Type a concept, like “slope” or “photosynthesis”.
