Hello!
x^3 + 3x^2
x (x^2 + 3x)
x^2 (x + 3)
Therefore, The Correct Answer is "x2(x + 3)".
I Hope my answer has come to your Help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead! :)
(Ps. Mark As Brainliest IF Helped!)
