(t^m)^2*t (x^4)^6-(x^3)^8急这两题不会写(t^m)^2*t (x^4)^6-(x^3)^8要有过程

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(t^m)^2*t (x^4)^6-(x^3)^8急这两题不会写(t^m)^2*t (x^4)^6-(x^3)^8要有过程
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(t^m)^2*t (x^4)^6-(x^3)^8急这两题不会写(t^m)^2*t (x^4)^6-(x^3)^8要有过程
(t^m)^2*t (x^4)^6-(x^3)^8急这两题不会写
(t^m)^2*t (x^4)^6-(x^3)^8要有过程

(t^m)^2*t (x^4)^6-(x^3)^8急这两题不会写(t^m)^2*t (x^4)^6-(x^3)^8要有过程
(t^m)^2*t
=t^2m×t
=t^(2m+1)
(x^4)^6-(x^3)^8
=x^24-x^24
=0