Algebraeasy · Past Paper

Factorize a^3 + a^2 + a + 1.

A(a+1)(a^2+1)
B(a-1)(a^2+1)
C(a+1)^3
Da(a^2+1)

✓ Correct Answer: A(a+1)(a^2+1)

Grouping: a^2(a+1) + 1(a+1) = (a+1)(a^2+1).

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