Question

encontar as raizes da equacoes do segundo grau b) 4x*+4x+1=0

Answer 1

8x+1=0 X=8+1 X=9 √9=3

Answer 2

Olá,

Resolução :

$4x^2 + 4x+1=0 \\ \\ a = 4 \\ b = 4 \\ c=1 \\ \\ \Delta=b^2-4ac \\ \Delta =4^2-4.4.1 \\ \Delta=16-16 \\ \Delta=0 \\ \\ x = \frac{-b\pm \sqrt{\Delta} }{2a} \\ \\ x= \frac{-4\pm \sqrt{0} }{2.4} \\ \\ x = \frac{-4 \pm 0}{8} \\ \\ \\ x' = \frac{-4+0}{8} = \frac{-4}{8} = \frac{-1}{2} \\ \\ x = \frac{-4-0}{8} =\frac{-4}{8} = \frac{-1}{2} \\ \\ \\ S = \{\ \frac{-1}{2}\}$

Bons Estudos!!