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1.Efectuati calculele:clasa a VIII.a

a.5 a^{3} : a^{2} + a^{2} -a-4 a^{3} :4a-3a-a=

Răspuns :

Renatemambouko
5a^3 : a^2 + a^2 -a-4a^3 :4a-3a-a=
=5a +a^2 -a-a^2-3a-a=
=5a  -a-3a-a=
=5a-5a=0

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