Practice problem
Simplify (−x7)−3.(-x^7)^{-3}.(−x7)−3.
x−21x^{-21}x−21
−x−21-x^{-21}−x−21
x4x^{4}x4
−x−4-x^{-4}−x−4
Type a concept, like “slope” or “photosynthesis”.
