factorise using identities
1.16x^2-144
2.9b^2+78b+169
Share
factorise using identities
1.16x^2-144
2.9b^2+78b+169
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:
1. answer=(4x-12) (4x+12) a^2-b^2=(a+b)(a-b)
2.answer=(3b+13)^2