Practice problem
Let f(x)=x2−16f(x) = x^2 - 16f(x)=x2−16 and g(x)=x+4g(x) = x+4g(x)=x+4. For all x≠−4x\neq-4x=−4, what is f(x)g(x)\frac{f(x)}{g(x)}g(x)f(x)?
x2+4x^2+4x2+4
x2−4x^2-4x2−4
x+4x+4x+4
x−4x-4x−4
Type a concept, like “slope” or “photosynthesis”.