Question

preciso de ajuda urgenteee , agradeço muitooo!!​

Answer 1

(x+2)² + x = 0

(x+2)(x+2) + x = 0

x² + 4x + 4 + x = 0

x² + 5x + 4 = 0

∆ = b² - 4.a.c

∆ = 5² - 4.1.4

∆ = 25 - 16

∆ = 9

x' = -b + √∆/2a e x" = -b - √∆/2a

x' = -5 + √9/2

x' = -5 + 3/2

x' = -7/2

x" = -5 - √9/2

x" = -5 -3/2

x" = - 13/2