2024年4月7日发(作者:)
单项式与多项式相乘的计算方法
英文回答:
Multiplying a monomial (single term) by a polynomial
can be done using the distributive property. To do this, we
multiply each term in the polynomial by the monomial and
then combine like terms, if any.
Let's say we have the monomial 2x and the polynomial
3x^2 + 4xy 5y^2. To multiply the monomial by the polynomial,
we multiply each term in the polynomial by 2x:
2x 3x^2 = 6x^3。
2x 4xy = 8x^2y.
2x -5y^2 = -10xy^2。
Now we combine the like terms:
6x^3 + 8x^2y 10xy^2。
So the result of multiplying the monomial 2x by the
polynomial 3x^2 + 4xy 5y^2 is 6x^3 + 8x^2y 10xy^2.
中文回答:
单项式与多项式相乘可以使用分配律进行计算。我们将单项式
的每一项与多项式相乘,然后合并相同的项(如果有的话)。
假设我们有单项式2x和多项式3x^2 + 4xy 5y^2。为了将单项
式与多项式相乘,我们将多项式中的每一项与2x相乘:
2x 3x^2 = 6x^3。
2x 4xy = 8x^2y.
2x -5y^2 = -10xy^2。
现在我们合并相同的项:
6x^3 + 8x^2y 10xy^2。
所以将单项式2x与多项式3x^2 + 4xy 5y^2相乘的结果是
6x^3 + 8x^2y 10xy^2。
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