When you enter an equation into the calculator, the calculator will begin by expanding (simplifying) the problem. Then it will attempt to solve the equation by using one or more of the following: addition, subtraction, division, taking the square root of each side, factoring, and completing the square.
Serfdom is a legal and economic system. A serf is a worker who has to stay in one area. Serfs were the lowest social class of the feudal society. Serfs were different from slaves. Serfs could have property. In most serfdoms, serfs were legally part of the land, and if the land was sold, they were sold with it. Serfdom is the forced labour of serfs, on the fields of the land owners. Serfs got protection and the right to work on the leased fields. Serfs worked in fields, and other agricultural-related works, like forestry, transportation (both land and river-based), work in craft and even in manufacturing.
Of Russian origin: Serfs. For hundreds of years, from as early as the 11th century up to the middle of the 19th, Russians lived in a feudal society. At the bottom was a huge class of peasants, very few of them free. Most toiled their lives away as krepostnoy krestyanin, or unfree peasants, commonly known as serfs. From the 11th till the end of the 16th century the elements of serfdom were scattered among certain classes of the rural population. Not all serfs were the same. Smerds were serfs allowed to own property, although itâs also been a term used to refer to rural folk in general.