Question

1. Expand the following using suitable identities:
(a) (a +76)square
(b) (5p -2)square​

Answer 1

$a. \: \: \: \: \: \: \: {a}^{2} + {76}^{2} + 152a$

$= {a}^{2} + 5776 + 152a$

$b. \: \: \: \: \: {(5p)}^{2} + 4 - 20p$

$25 {p}^{2} + 4 - 20p$