Question

use an expression formula to find the value (1005)²​

Answer 1

(1000 + 5)²

(1000)² + (5)² + 2(1000)(5)

1000000 + 25 + 10000

1010025

Answer 2

${ \pink{question}} \: : \\ use \: an \: expression \: formula \: \\ to \: find \: the \: value \: (1005)² \\ \\ { \pink{answer}} : \\ ({1005})^{2} = {(1000 + 5)}^{2} \\ = {1000}^{2} + 2(1000)(5) + {5}^{2} \\ \\ { \orange{formula}} : \\ {(a + b)}^{2} = {a}^{2} + 2ab + {b}^{2} \\ \\ = 1000000 + 10000 + 25 \\ = 1010025$