【#GRE留开云kaiyun(中国)外语考试# #GRE数开云kaiyun(中国)重要知识点：Subtracting Monomials#】向着顺利通过考试的目标，迈步向前，必然会成功拿到证书。以下是“GRE数开云kaiyun(中国)重要知识点：Subtracting Monomials”，欢迎阅读参考！更多相关讯息请关注®开云网页版！
To subtract a monomial from another of the same variables just subtract the coefficients. Only two like monomials can be subtracted from each other.
Example:
By subtracting 3x from 4x, we get (4-3)x=x.
By subtracting 3xy from 2xy, we get (2-3)xy=-xy.
By subtracting bx from ax, we get ax-bx=(a-b)x.
Remember:
Monomials can be subtracted only if they have the same variables with identical powers.
