-6x+5xy-2(x+2xy)
-6x+5xy-4x-4xy
-10x+xy
xy-10x
x(y-10)
А) 3а-4ах+2-11а+14ах= -8а+10ах+2
б)3y5+3y2
3) (3x^2 - 5x)+(7x^2-4x) = 3x^2 - 5x+7x^2-4x= 10x^2-x
4) 1. 6by - 15bx - 4ay = 10ax = 2y(3b-2a) - 5x(3b-2a) = (2y-5x)(3b-2a)
2. 4x^2 - 4xz - 3x = 3z = x(4x-3) - z(4x-3) = (x-z)(4x - 3)