Post a New Question

posted by Anonymous Tuesday, October 16, 2012 at 9:00am.

(x+3y)(x-3y)-2(x+2y)(x-y)

what about it ? Are we expanding ? then ... x^2 - 9y^2 - 2(x^2 + xy - 2y^2) = ..... I will let you finish it

More Related Questions