{2015}化简3m减12分之m的平方减16是多少-搜答案-智慧作业帮

(m²-3m)/(9-m²)=m(m-3)/(3+m)(3-m)=-m/(m+3);您好,很高兴为您解答,skyhunter002为您答疑解惑如果本题有什么不明白可以追问,如果满意

m^2-12/9-m-2/3=m^2-m-2=(m-2)(m-1)

12/(m²-9)-2/(m-3)=12/(m²-9)-2(m+3)/(m²-9)=[12-2(m+3)]/(m²-9)=-2(m-3)/(m²-9)

m+1/m=3平方m²+2+1/m²=9m²+1/m²=7(m-1/m)²=m²-2+1/m²=7-2=5

3-m分之2和m的二次方减9分之12,的最简公分母（m+3）（m-3）~如果你认可我的回答,请及时点击【采纳为满意回答】按钮~~手机提问者在客户端右上角评价点【满意】即可.~你的采纳是我前进的动力~~

根号下(m^2-4m+4)=|m-2|,因1

=（m-15）/（m+3）（m-3）-2（m+3）/《-（m-3）（m+3）》=m-15+2m+6/(m+3)(m-3)=3m-9/(m+3)(m-3)=3(m-3)/(m+3)(m-3)=3/(m+

解题思路：利用分式的运算求解。解题过程：过程请见图片。最终答案：略

3m-12分之m的平方-16=3(m-4)分之(m+4)(m-4)=3分之(m+4)

12/(m^2-9)+2/(3-m)+2/(m+3)=12/(m^2-9)-2/(m-3)+2/(m+3)=12/(m^2-9)-2(m+3)/(m^2-9)+2(m-3)/(m^2-9)=[12-2

(m+n)/3+(n-m)/4=-1/4;(1)(m+8)/6-5(n+1)/12=2;(2)对(1)化解得：4(m+n)+3(n-m)=-3;m+7n=-3;（3）对(2)化解得：2(m+8)-5(

-m-5分之3m+2 化简

原式＝-8m/5+2

解(m²-16)/(3m-12)=(m-4)(m+4)/3(m-4)=(m+4)/3

化简m的平方减去9分之m的平方减去3m+m+3分之3=m方-（m/9）方-（3m+m+1）=m方-（m/9）方-4m-1=80m方-324m-81

12/(m^2-9)+2/(3-m)+2/(m+3)=12/(m^2-9)-2/(m-3)+2/(m+3)=12/[(m-3)(m+3)]-2(m+3)/[(m-3)(m+3)]+2(m-3)/[(m

再答：应为你题目没说清楚。。可能是这三个之一

原式=-(m²-9)分之(m²-3m)=-(m+3)(m-3)分之m(m-3)=-(m+3)分之m

=(m+4)(m-4)/[-3(m-4)]×1/m(m+4)=-1/3m

[m/(m+3)-6/(m^2-9)]÷[2/(m-3)]=[m/(m+3)-6/(m+3)(m-3)]×[(m-3)/2]={[m(m-3)-6]/[(m+3)(m-3)]}×[(m-3)/2]=(

=12/(m+3)(m-3)-2/(m-3)+1/(m+3)=12/(m+3)(m-3)-2(m+3)/(m+3)(m-3)+(m-3)/(m+3)(m-3)=(12-2m-6+m-3)/(m+3)(