Practice problem
Let f(x)=x3−3xf(x) = x^3 - 3xf(x)=x3−3x and let g(x)=10x2−8xg(x) = 10x^2 - 8xg(x)=10x2−8x. Find f(x)−g(x)f(x) - g(x)f(x)−g(x).
−x3+10x2−5x-x^3+ 10x^2 -5x−x3+10x2−5x
x3−10x2+5xx^3 - 10x^2 + 5xx3−10x2+5x
x3+10x2−11xx^3 + 10x^2 -11xx3+10x2−11x
−x2+x-x^2 + x−x2+x
Type a concept, like “slope” or “photosynthesis”.