Answer
$3x^2+3x$
Work Step by Step
To combine like terms, add the coefficients.
$2x^2+16x+x^2-13x=(2+1)x^2+(16+(-13))x=3x^2+3x$
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.