It is -2y + x2y - 8, which is an expression that cannot be simplified further, not can it be evaluated.
4x-2y+3x+2y When simplified: 7x
7+4xz+52xz+2y=7+56xz+2y
11x + 2y
12x-4y+9z+2y =12x-2y+9z
-2y+y = -y
10x + 41y142x + 2y
(x + y)(x10 - x9y + x8y2 - x7y3+ x6y4 - x5y5 + x4y6 - x3y7 + x2y8 - xy9 + y10)
2y+8y2 can be factored to 2y(1+4y)
56xy + 2y + 3x
It is 2y + 22 = 2(y + 11)
2y^2+5y+2=(2y+1)(y+2)
2y + 1