Question

funçao quadratica
q(x)= x²/4+ 2x+4

Answer 1

q(x) = 0

0 = x² + 2x + 4
       4

mmc = 4

0 = x² + 8x + 16
4           4

x² + 8x + 16 = 0
a = 1; b = 8; c = 16

Δ = b² - 4ac
Δ = 8² - 4.1.16
Δ = 64 - 64
Δ = 0

x = - b +/- √Δ = - 8 +/- √0
          2a               2.1

x = - 8  = - 4
        2

x = - 4