Practice problem
If f(x)=3x+1f(x)=3x+1f(x)=3x+1 and g(x)=2x2−3x+1g(x)=2x^2-3x+1g(x)=2x2−3x+1 then what is (f−g)(x)(f-g)(x)(f−g)(x)?
−2x2-2x^2−2x2
2x2−6x+12x^2-6x+12x2−6x+1
−2x2+6x-2x^2+6x−2x2+6x
−2x2−6x-2x^2-6x−2x2−6x
Type a concept, like “slope” or “photosynthesis”.