Question

me ajudem por favor
$( \times + \frac{1}{2} ).( \times - \frac{1}{2} ) =$

​

Answer 1

$(x + \frac{1}{2} ).(x - \frac{1}{2} )$

$= x.x - \frac{1}{2} .x + \frac{1}{2} .x + \frac{1}{2} . - \frac{1}{2}$

$= {x}^{2} - \frac{1}{4}$

_____

Espero ter ajudado