Question

phân tích đa thức sau thành nhân tử  : x^5 + x^4 + 1

Answer 1

\(x^5+x^4+1\)

\(=\left(x^5-x^2\right)+\left(x^4-x\right)+\left(x^2+x+1\right)\)

\(=x^2\left(x^3-1\right)+x\left(x^3-1\right)+\left(x^2+x+1\right)\)

\(=\left(x^3-1\right)\left(x^2+x\right)+\left(x^2+x+1\right)\)

\(=\left(x-1\right)\left(x^2+x+1\right)\left(x^2+x\right)+\left(x^2+x+1\right)\)

\(=\left(x^2+x+1\right)\left(x^3-x+1\right)\)

Answer 2

\(x^5+x^4+1=x^3\left(x^2+x+1\right)-x\left(x^2+x+1\right)+x^2+x+1=\left(x^2+x+1\right)\left(x^3-x+1\right)\)

Answer 3

DỂ QUÁ!!!!!!!!!!!!!!!!!!!!!!!!

tui hk biết làm