1.

Factorize a^3 + a^2 + a + 1​

Answer»

   a^3+a^2+a+1\\

= a^2( a+1) + 1(a+1)

= (a^2+1)(a+1)

(a²+1) is not FACTORISABLE further SINCE it has COMPLEX roots

HOPE IT HELPS!!



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