若(x^m÷x^2n)³÷x^m-n与¼x²是同类项且2m+5=6求m,n的值
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![若(x^m÷x^2n)³÷x^m-n与¼x²是同类项且2m+5=6求m,n的值](/uploads/image/z/7640186-50-6.jpg?t=%E8%8B%A5%28x%5Em%C3%B7x%5E2n%29%26%23179%3B%C3%B7x%5Em-n%E4%B8%8E%26%23188%3Bx%26%23178%3B%E6%98%AF%E5%90%8C%E7%B1%BB%E9%A1%B9%E4%B8%942m%2B5%3D6%E6%B1%82m%2Cn%E7%9A%84%E5%80%BC)
若(x^m÷x^2n)³÷x^m-n与¼x²是同类项且2m+5=6求m,n的值
若(x^m÷x^2n)³÷x^m-n与¼x²是同类项且2m+5=6求m,n的值
若(x^m÷x^2n)³÷x^m-n与¼x²是同类项且2m+5=6求m,n的值
(x^m÷x^2n)³÷x^m-n
=X^(m-2n)/x^(m-n)
=X^(m-2n-m+n)
=x^(-n)
与¼x²是同类项
则-n=2
n=-2
2m+5=6
m=1/2