Simplify by combining like terms. (Do not factor)
2x^2 + 2xy - 7y^2 - 7y^2 - xy + 2y^2

2x^2   +xy -12y^2

Step-by-step explanation:

2x^2 + 2xy - 7y^2 - 7y^2 - xy + 2y^2

Combine like terms

2x^2        + 2xy- xy       - 7y^2 - 7y^2  + 2y^2

2x^2       +xy                   -12y^2

  or  

step-by-step explanation:

if the four friends split the cost, p, of the pizza evenly, then each friend pays one-fourth of the cost of the pizza.

the expression is   or