Question

resolva (9x+8)(9x-8)​

Answer 1

( 9x + 8 ) ( 9x - 8 )

( 9x )² - 8²

81x² - 8²

81x² - 64 resultado final.

Answer 2

Resposta:

Explicação passo a passo:

(9x+8)(9x-8)

= 9x.9x - 8.9x + 8.9x -8.8

​ = 81x^2 - 64

V = (2a+2b)^3

V = (2a+2b).(2a+2b).(2a+2b)

V = (4a²+2.2a.2b+4b²).(2a+2b)

V = (4a²+8ab+4b²).(2a+2b)

V = 8a^3+8a²b+16a²b+16ab²+8ab² +8 b^3

V = 8a^3 + 24a².b + 24ab² + 8b^3