Question

resolva
(6x +1) . (6x-1) =

Answer 1

Resposta:

( 6+1)(6− 1 )=  

6 ( 6 − 1 ) + 1 ( 6 − 1)=  

3 6 ² − 6 + 1 ( 6 − 1 )=

36 ² - 6x + 1(6 - 1)=

36 ² - 6x + 1 + 6 - 1=

36 ² - 6x + 6 - 1=

36 ² - 1