Algebramedium · Past Paper
Factorize x^3 + x^2 + x + 1.
A(x+1)(x^2+1)
B(x-1)(x^2+1)
C(x+1)^3
Dx(x^2+x+1)
✓ Correct Answer: A — (x+1)(x^2+1)
Grouping: x^2(x+1) + 1(x+1) = (x+1)(x^2+1).
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