Practice problem
Simplify (x+y)2−(x−y)2(x+y)^2 - (x-y)^2(x+y)2−(x−y)2
2x2+2y22x^2+2y^22x2+2y2
2x2+2y2+4xy2x^2+2y^2+4xy2x2+2y2+4xy
000
4xy4xy4xy
Type a concept, like “slope” or “photosynthesis”.
