Practice problem
Expand the following: (x+y)⋅(x+y)(x+y)\cdot (x+y)(x+y)⋅(x+y)
x2−2xy−y2x^2 -2xy-y^2x2−2xy−y2
x2+2xy+y2x^2 + 2xy + y^2x2+2xy+y2
x2+y2x^2 + y^2x2+y2
x2−y2x^2 - y^2x2−y2
Type a concept, like “slope” or “photosynthesis”.
