n= 时7x^2y^2n+1与-1/3x^2y^5是同类项

Question

n= 时7x^2y^2n+1与-1/3x^2y^5是同类项

Answer 1

答：
若他们同类项,则x和y的次数都相等.
x的次数都为2.
则2n+1=5,即n=2
所以n=2时,是同类项.