Akkerman
Akkerman
19-01-2016
Mathematics
contestada
(а^2+2)(а-1)-а(а^2+2) Help me, please.
Respuesta :
Exvited
Exvited
19-01-2016
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[tex](a^2+2)(a-1)-a(a^2+2) \\ \\ a^3 - a^2 + 2a - 2 - a^3 - 2a \\ \\ (a^3 - a^3) - a^2 + (2a - 2a) - 2 \\ \\ -a^2 - 2 \\ \\[/tex]
Answer:
-a^2 - 2
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