(2/3m²-1/2m+1)+(-1/2m²+2/3m-1)
(1/2m-1/3mn+2)+(mn+1-m/2)
(2ab²-1/3a²b)-3/4ab²)-3/4ab²-a²b)
como faz essas me ajudem..obrigada :)
(1/2m-1/3mn+2)+(mn+1-m/2)
(2ab²-1/3a²b)-3/4ab²)-3/4ab²-a²b)
como faz essas me ajudem..obrigada :)
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Verified answer
A)(2/3m²-1/2m+1)+(-1/2m²+2/3m-1)=
2/3m²-1/2m+1-1/2m²+2/3m-1=
1/6m² +1/6m
b)
(1/2m-1/3mn+2)+(mn+1-m/2)=
1/2m-1/3mn+2+mn+1-m/2=
2/3mn +1
c)
(2ab²-1/3a²b)-3/4ab²)-3/4ab²-a²b)=
2ab²-1/3a²b-3/4ab²-3/4ab²-a²b=
-4/3a²b +1/2a²b