m^-3* m^2/ m^-4 = m^-1/ m^-4 = m^3
3/a^3*a^2/ 36 =1/12a
(a^-2+2a^-1 +1)(a+1)^-2 =( 1/a^2 +2/a+1 ) (1/(a+1)^2)= (a+1)^2/a^2 (1/(a+1)^2)=1/a^2
1)m_2hfjkxcmldodjl.x,xbndvjdvbdnbd,dmd;ldkldkd
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m^-3* m^2/ m^-4 = m^-1/ m^-4 = m^3
3/a^3*a^2/ 36 =1/12a
(a^-2+2a^-1 +1)(a+1)^-2 =( 1/a^2 +2/a+1 ) (1/(a+1)^2)= (a+1)^2/a^2 (1/(a+1)^2)=1/a^2
1)m_2hfjkxcmldodjl.x,xbndvjdvbdnbd,dmd;ldkldkd