Practice problem
If x=yx=yx=y, mark all terms below that can be combined with xyzxyzxyz.
x2zx^{2}zx2z
xz2xz^{2}xz2
y2zy^{2}zy2z
x2y2x^{2}y^{2}x2y2
None of the above
Type a concept, like “slope” or “photosynthesis”.
