Work Step by Step
If $P(x) = 3x+3$ and $Q(x) = 4x^2-6x+3$ $P(x) + Q(x) = 3x+3 + 4x^2-6x+3 = 4x^2-6x+3x+3+3 = 4x^2-3x+6$
You can help us out by revising, improving and updating this answer.Update this answer
After 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.