Compute the products mentally
(f+20)(f-20)
Share
Compute the products mentally
(f+20)(f-20)
Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Answer:
f^2-400
Step-by-step explanation:
(f+20)(f-20)
f^2-20^2
f^2-400