Practice problem
(Select all that apply.)
x+xx+xx+x
−x+3x-x+3x−x+3x
x⋅xx\cdot xx⋅x
x−(x−2x)x-(x-2x)x−(x−2x)
(x−x)−2x(x-x)-2x(x−x)−2x
Type a concept, like “slope” or “photosynthesis”.
