Question

x^2+4y^2+4y-4xy-2x-8

Answer 1

let me simplify it for you:
2x+8y+4x-4xy-2x-8
2x+8y+4y-6xy-8
2x+12y-6xy-8
2x+6x-8
2(x+3x-4)
x+3x-4
4x-4
x=1