Consider a number with unit digit 5, i.e., a5 (a5)2 = (10a + 5)
= 10a(10a + 5) + 5(10a + 5)
= 100a+ 50a + 50a + 25
= 100a(a + 1) + 25
= a(a + 1) hundred + 25.
*Please explain it*
Share
Consider a number with unit digit 5, i.e., a5 (a5)2 = (10a + 5)
= 10a(10a + 5) + 5(10a + 5)
= 100a+ 50a + 50a + 25
= 100a(a + 1) + 25
= a(a + 1) hundred + 25.
*Please explain it*
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.
0 Replies