Practice problem
Let x,y,x, y,x,y, and zzz be integers. Is 4x4y20z1004x^4y^{20}z^{100}4x4y20z100 a perfect square?
Yes
No
Not enough information. We would need to know the values of x,y,x, y,x,y, and z.z.z.
Type a concept, like “slope” or “photosynthesis”.