Question

como se resolve a equação do 2ºgrau: 4x²+4x+1=0 ??
me ajudem PFV !!

Answer 1

Delta = b² - 4 ac
Delta= 4²-4*4*1
Delta= 16- 16
delta = 0


X=-4+- raiz o / 2*a
X=-4-0/8
X´=-4/8

X=- 4+0/8
X´´= -4/8

Answer 2

$x= \frac{-4+- \sqrt{4^2-4*4*1} }{2*4} \\ \\ x= \frac{-4+- \sqrt{16-16} }{8} \\ x= \frac{-4+- \sqrt{0} }{8} \\ x= \frac{-4+- 0 }{8} \\ \\ x'= \frac{-4-0}{8}= \frac{-4}{8} = -\frac{1}{2} \\ x''= \frac{-4+0}{8} = -\frac{1}{2}$