Saggar did the same on a smaller scale, constructing the round or banjo-shaped bottom. Again the mow was used to beat the air out of the clay and flatten the sheet. The saggar maker was an experienced craftsman who paid his assistants out of his piece-work earnings: he took the bottom and the sides onto a wheel and using his thumbs joined the sides to the bottom. The "green" saggars were dried and then placed on the top of bungs during the next firing of the kiln. The unfired ceramic ware was placed in saggars and then biscuit fired, before being
Like terms The like terms in this expression are the terms that can be grouped together by having exactly the same set of unknown factors. Here, the sets of unknown factors are formula_15 formula_16 and formula_17. By the rule in the first example, all terms with the same set of unknown factors, that is, all like terms, may be combined by adding or subtracting their coefficients, while maintaining the unknown factors. Thus, the expression becomes formula_18 The expression is considered simplified when all like terms have been combined, and all terms present are unlike. In this case, all terms now have different