Simplify

1)\(\frac{x}{x}\)
\(1\)
2)\(\frac{5x}{5}\)
\(x\)
3)\(\frac{6x}{3x}\)
\(2\)
4)\(\frac{4x^2}{2x}\)
\(2x\)
5)\(\frac{6x^2 +2x}{2}\)
\(3x^2+x\)
6)\(\frac{9x^3+6x^2+3x}{3x}\)
\(3x^2+2x+1\)
7)\(\frac{4x}{16x^2+8x}\)
\(\frac{1}{4x+8}\)
8)\(\frac{-2x}{6x^3+4x^2}\)
\(\frac{-1}{3x^2+2x}\)