Question

Resolva essa equação do 2° grau:

a-3(x+1/2) (x-1/2)=0

Answer 1

a) 3(x + 1/2) . (x - 1/2) = 0
    (3x + 3/2) . (x - 1/2) = 0
    3x² - 3x/2 + 3x/2 - 3/4 = 0
    3x² - 3/4 = 0
    3x² = 3/4
      x² = 3/12
      x = √3/√12

$\frac{ \sqrt{3} }{ \sqrt{12} } . \frac{ \sqrt{12} }{ \sqrt{12}} = \frac{ \sqrt{12.3}} { \sqrt{12.12}} = \frac{ \sqrt{36}}{ \sqrt{144}} = \frac{6}{12} = \frac{1}{2}$

x = 1/2