27x(x−y)−2(y−x)−x+y27x(x-y)-2(y-x)-x+y27x(x−y)−2(y−x)−x+y
27x(x−y)−2(y−x)−x+y=27x(x−y)+2(x−y)−(x−y)=27x(x−y)+(x−y)=(27x+1)(x−y)27x(x-y)-2(y-x)-x+y=27x(x-y)+2(x-y)-(x-y)=27x(x-y)+(x-y)=(27x+1)(x-y)27x(x−y)−2(y−x)−x+y=27x(x−y)+2(x−y)−(x−y)=27x(x−y)+(x−y)=(27x+1)(x−y)
=27x(x−y)+2(x−y)−(x−y)=27x(x−y)+(x−y)=(27x+1)(x−y)=27x(x-y)+2(x-y)-(x-y)=27x(x-y)+(x-y)=(27x+1)(x-y)=27x(x−y)+2(x−y)−(x−y)=27x(x−y)+(x−y)=(27x+1)(x−y)
tìm x nguyên để giá trị của đa thức x^3-2x^2+7x-7 chia hết cho x^2+3
