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\(x^4+2004x^2+2003x+2004\)
\(=x^4+2004x^2+2004x-x+2004\)
\(=\left(x^4-x\right)+2004\left(x^2+x+1\right)\)
\(=x\left(x^3-1\right)+2004\left(x^2+x+1\right)\)
\(=x\left(x-1\right)\left(x^2+x+1\right)+2004\left(x^2+x+1\right)\)
\(=\left(x^2+x+1\right)\left(x^2-x+2004\right)\)
x4 + 2005x2 + 2004x + 2005
=x4+2005x2+2005x-x+2005
=x4-x+2005x2+2005x+2005
=x(x3-1)+2005.(x2+x+1)
=x(x-1)(x2+x+1)+2005.(x2+x+1)
=(x2+x+1)[x(x-1)+2005]
=(x2+x+1)(x2-x+2005)
x^4+2005x^2+2004x+2005
=x^4-x+2005x^2+2005x+2005
=x(x^3-1)+2005(x^2+x+1)
=x(x-1)(x^2+x+1)+2005(x^2+x+1)
=(x^2+x+1)(x^2-x+2005)
x4 + 2005x2 + 2004x + 2005
=x4-x+2005x2+2005x+2005
=x(x3-1)+2005.(x2+x+1)
=x(x-1)(x2+x+1)+2005.(x2+x+1)
=(x2+x+1)[x(x-1)+2005]
=(x2+x+1)(x2-x+2005)
\(1,=x\left(x^2-2x+1-y^2\right)=x\left[\left(x-1\right)^2-y^2\right]=x\left(x-y-1\right)\left(x+y-1\right)\\ 2,=\left(x+y\right)^3\\ 3,=\left(2y-z\right)\left(4x+7y\right)\\ 4,=\left(x+2\right)^2\\ 5,Sửa:x\left(x-2\right)-x+2=0\\ \Leftrightarrow\left(x-2\right)\left(x-1\right)=0\Leftrightarrow\left[{}\begin{matrix}x=1\\x=2\end{matrix}\right.\)
\(x^4+2004x^2+2003x+2004\)
\(=x^4-x+2004x^2+2004x+2004\)
\(=x\left(x^3-1\right)+2004\left(x^2+x+1\right)\)
\(=x\left(x-1\right)\left(x^2+x+1\right)+2004\left(x^2+x+1\right)\)
\(=\left(x^2+x+1\right)\left(x^2-x+2004\right)\)
\(x^4+2004x^2+2003x+2004\)
\(=x^4+2004x^2+2004x-x+2004\)
\(=\left(x^4-x\right)+2004\left(x^2+x+1\right)\)
\(=x\left(x^3-1\right)+2004\left(x^2+x+1\right)\)
\(=x\left(x-1\right)\left(x^2+x+1\right)+2004\left(x^2+x+1\right)\)
\(=\left(x^2+x+1\right)\left(x^2-x+2004\right)\)