$ 6x^2+5x +1$
Work Step by Step
By using the FOIL (First, Outer, Inner, Last) method of multiplying two binomials, we have $$ (3x + 1)(2x + 1)= 6x^2+3x+2x +1\\ = 6x^2+5x +1 .$$
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.