Work Step by Step
RECALL: $(a+b)^3=a^3++3a^2b+ 3ab^2+b^3$ Use the formula above with $a=x$ and $b=1$ to obtain: $=x^3+3(x^2)(1)+3(x)(1^2)+1^3 \\=x^3+3x^2+3x+1$
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.