Question 141960
okay,
4x^2 - 3y^2 + 2xy -(x^2 + y^2 +3xy) = 4x^2 -3y^2 +2xy - x^2 - y^2 - 3xy
= 3x^2 - 4y^2 - xy
=(3x-4y)(x+y)
thank you,
Jojo