Answer:
\((x^2+1)(x + 1)\)
Step-by-step explanation:
Factor \(x^3 + x^2 + x + 1\) by grouping
Group first two terms and last two terms
\((x^3 + x^2) + (x + 1)\)
Factor out GCF from each group . when we factor out GCF , divide each term by GCF
\(x^2(x+1) + 1(x + 1)\)
Factor out x+1
\((x^2+1)(x + 1)\)