Multiple Choice 12.5 points Factor: 3x^4+5x^3+x^2 1(3x^4+5x^3+x^2) x(3x^3+5x^2+x) x^2(3x^2+5x+1) Cannot be Factored

To factor the expression $3x^{4}+5x^{3}+x^{2}$, we can first factor out the common factor of $x^2$ from each term:<br /><br />$x^2(3x^2 + 5x + 1)$<br /><br />Therefore, the correct answer is:<br /><br />$x^2(3x^2 + 5x + 1)$