Work Step by Step
FOIL means you combine the first term from each expression, the inside terms, the outside terms and the last terms. $100x^2+30x+70x+21=100x^2+100x+21$
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.