x5-x4-x3-x2-x-2
=x5+x4+x3+x2+x-2x4-2x3-2x2-2x-2
=x(x4+x3+x2+x+1)-2(x4+x3+x2+x+1)
=(x4+x3+x2+x+1)(x-2)
\(x^5-x^4-x^3-x^2-x-2\)
\(\text{Phân tích đa thức thành nhân tử :}\)
\(\left(x^4+x^3+x^2+x+1\right)\left(x-2\right)\)
x 5 -x 4 -x 3 -x 2 -x-2
=x 5+x 4+x 3+x 2+x-2x 4 -2x 3 -2x 2 -2x-2
=x(x 4+x 3+x 2+x+1)-2(x 4+x 3+x 2+x+1)
=(x 4+x 3+x 2+x+1)(x-2)
chúc bn hok tốt @_@