Question

determine as raizes da equacao x elevado ao quadrado+ 18x + 17 = 0

Answer 1

x² + 18x + 17 = 0

x = - 9 + -√81 - 17

x = - 9 + -√64

x' = - 9 + 8  → x' = - 1

x" = - 9 - 8 → x" = - 17