
a的n-5次方*(a的n+1次方b的3m-2)^2+(a^n-1b^m-2)^3*(b^3m+2)=
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=a^(n-5)*a^(2n+2)*b^(6m-4)+a^(3n-3)**b^(3m-6)*b^(3m+2)
=a^(3n-3)*b^(6m-4)+a^(3n-3)*b^(6m-4)
=2a^(3n-3)*b^(6m-4)
=a^(3n-3)*b^(6m-4)+a^(3n-3)*b^(6m-4)
=2a^(3n-3)*b^(6m-4)
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