Practice problem
Add the following polynomials: (6x2y+5y2x+7x−2y−19)+(3y2x+5x2y+2y−9x+8)(6x^{2}y+5y^{2}x+7x-2y-19)+(3y^{2}x+5x^{2}y+2y-9x+8)(6x2y+5y2x+7x−2y−19)+(3y2x+5x2y+2y−9x+8)
11x2y+8y2x−2x−1111x^{2}y+8y^{2}x-2x-1111x2y+8y2x−2x−11
11x2y+8y2x−2x−4y−1111x^{2}y+8y^{2}x-2x-4y-1111x2y+8y2x−2x−4y−11
19x2y2−2x−4y−1119x^{2}y^{2}-2x-4y-1119x2y2−2x−4y−11
13x3y3−1113x^{3}y^{3}-1113x3y3−11
Type a concept, like “slope” or “photosynthesis”.