25(3m–2n)∧2–9(m+4n)∧2
来源:学生作业帮助网 编辑:作业帮 时间:2024/11/16 11:28:01
25(3m–2n)∧2–9(m+4n)∧2
25(3m–2n)∧2–9(m+4n)∧2
25(3m–2n)∧2–9(m+4n)∧2
原式=25(9m^2-12mn+4n^2)-9(m^2+8mn+16n^2)
=175m^2-300mn+100n^2-9m^2-72mn-144n^2
=166m^2-372mn-44n^2
这个式子没法因式分解的
25(3m–2n)∧2–9(m+4n)∧2
25(3m–2n)∧2–9(m+4n)∧2 因式分解
4m^2(m+n)-9n^2(m+n)
[(m-n)^2*(m-n)^3]^2/(m-n)^4
[(m-n)^2*(m-n)^3]^2/(m-n)^4
4m(m-n)^2+4n(n-m)^3
(m-n)2(n-m)3(n-m)4化简
[(m+2n)(m-2n)-(m-2n)∧2]÷(-3n)∧2
已知3m=4n,则m/m+n+n/m-n-m^2/m^2-n^2=
(3m-2n)^+(3m+2n) (3m-2n)-9(m+n)^
已知16∧m=4×2∧2n-2,27∧n=9×3∧m+3,求m,n的值
(m-2n)(2n+m)-(-3m-4n)(4n-3m)=
(3m-4n)(4n+3m)-(2m-n)(2m+n)
[2(m+n)^5-3(m+n)^4+(-m-n)^3]÷[2(m+n)^3]
计算(m+4n)(m-n)-6(m+2n)(m-3n)
(m+4n)(m-n)-6(m+2n)(m-3n)
(m+4n)(m-n)-6(m+2n)(m-3n),
若(m-2n)/(2m+n)=3,则[3(m-2n)/(2m+n)-(m-2n)/[2(2m+n)] - {9(m-2n)/[4(2m+n)]}的值是?