Question

Ajudinha por favorrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrr. $\frac{4x^{2}-1 }{4x^{2}+4x+1 }$

Answer 1

Resposta:

Explicação passo-a-passo:

 

     4x² - 1         =  (2x+1)(2x-1)   =   2x-1  

   4x² + 4x + 1          (2x+1)²             2x+1

Cálculos:

               4x² - 1 = 4x² - 1² = (2x+1)(2x-1)

                              √      √

                              2x     1

   4x² + 4x + 1 =  (2x +1)²

    √       ↓     √

   2x       ↓      1

         2.2x.1