Question

(3x + 2) (3x - 2)
(6 + x) (6 - x)

Answer 1

Explicação passo-a-passo:

(3x +2) (3x - 2)

(9x² - 6x - 6x - 4)

(9²x - 4)

9x² - 4 =0

9x²= 4

x²=4/9

x=√4/9

x=2/3

(6 + x) (6 - x)

(36 - 6x - 6x - x)

36 - x =0

-x= -36 (-1)

x=36

Tentei nem!

Answer 2

Resposta:

(3x +2) (3x - 2)

(9x² - 6x - 6x - 4)

(9²x - 4)

9x² - 4 =0

9x²= 4

x²=4/9

x=√4/9

x=2/3

(6 + x) (6 - x)

(36 - 6x - 6x - x)

36 - x =0

-x= -36 (-1)

x=36

Explicação passo-a-passo: