Practice problem
Simplify the following: 20x−55x4\frac{20x^{-5}}{5x^4}5x420x−5
4x−94x^{-9}4x−9
4x4x4x
4x\frac{4}{x}x4
14x9\frac{1}{4x^9}4x91
Type a concept, like “slope” or “photosynthesis”.
