The following expressions are the areas of rectangles. Find the possible lengths and breadths of these rectangles.
 
1. \(x^2−6x+8\)
 
2. \(x^2−3x+2\)
Answer variants:
\((x−4)(x−2)\)
\((x+2)(x+1)\)
\((x−2)(x−1)\)
\((x+4)(x+2)\)