Question

Resolva com a Fórmula De Baskara
y²+6y+8=0

Answer 1

y² + 6y + 8 = 0

y =  - 3 + - √9 - 8

y = - 3 + - √1

y' = - 3 + 1  →  y' = - 2

y" = - 3 - 1  →  y" = - 4

Answer 2

Y = - b ± √ b² -4ac /2a
Y = -6 ± √ 36 -32 /2
Y = -6 ± √ 4 / 2
Y = -6 ± 2 / 2

y1 = -6+2/2 = -4/2 = -2

y2 = -6-2/2 = -8/2 = -4

S={ -2 ; -4 }