Work Step by Step
RECALL: $(a+b)^2a^2+2ab+b^2$ Use the formula above to have: $(x+3)^2 \\=x^2 + 2(x)(3) + 3^2 \\=x^2+6x+9$
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.