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Maximandreev2
a fost răspuns

aduceti la forma cea mai simpla.
(a[tex]^{3} -1)(a^{6} + a^{3} +1[/tex])
(m-1)([tex] m^{2} +m+1)[/tex]
(a[tex] ^{2} +1)( a^{4} -a ^{2} +1)[/tex]
(2a+3b)(4a[tex] ^{2} [/tex]-6ab+9b[tex] ^{2} [/tex])

Răspuns :

Angelicus
Folosim formulele:
a³-b³=(a-b)(a²+ab+b²)
a³+b³=(a+b)(a²-ab+b²)
...........................................

1) =a⁹-1
2) =m³-1
3) =a⁶+1