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一注意几个特殊规定在a~m÷a~n=a~(m-n)中,因为0作除数无意义,所以规定a≠0.在a~0=1中,由于它是在(a~m÷a~n=a~(m-n)中,当m=n时自然得出来的,所以规定a≠0.特别是在应用法则a~0=1时,不要只看形式,要看实质,如(22-4)0就无意义.在a~(-P)=1/a~P中也是如此.二注意公式的代表性和广泛性以上公式中的底数可以是数、字母,也可是单项式或多项式.若是多项式,一定要将它作为一个整体进行运算.在多项式除以多项式、多项式除以单项式中也是如此.
Note that a few special rules in a ~ m ÷ a ~ n = a ~ (mn), because 0 for the divisor meaningless, so the provisions of a ≠ 0. In a ~ 0 = 1, because it is in (a ~ m ÷ a ~ n = a ~ (mn), when m = n naturally come out, so the provisions of a ≠ 0. In particular, the application of a ~ 0 = 1, do not look at the form, Such as (22-4) 0 is meaningless, as is the case of a ~ (-P) = 1 / a ~ P. Note the Representativeness and Extensiveness of Formulas The base numbers in the above formulas can be numbers, letters, Monomial or polynomial If polynomial, be sure to treat it as a whole In polynomial division by polynomials, polynomials are divided by monomials as well.