当3小于等于m小于5时,化简|2m-10|- |m-3|=多少,

问题描述:

当3小于等于m小于5时,化简|2m-10|- |m-3|=多少,

因为3小于等于m小于5 所以|2m-10 |=10-2m |m-3|=m-3 所以|2m-10|- |m-3|=10-2m-(m-3)=10-3m+3
采纳哦