Question

x ao quadrado + 5x + 4 = 0 Bhaskara

Answer 1

x²+5x+4 = 0
delta = 5²-4x1x4 = 25- 16 = 9
x¹ = -5 + 3/2 = -2/2 = -1
x² = -5 - 3/2 = -8/2 = -4

Answer 2

x² + 5x + 4 = 0


delta = b² - 4.a.c


a = 1
b = 5
c = 4


delta = 5² - 4.1.4
delta = 25 - 16
delta = 9


x = -b ± √delta/2.a


x = -5 ± √9/2.1

x = -5 ± 3/2

x = -5 - 3/2 = -8/2 = -4

x = -5 + 3/2 = -2/2 = -1


s={ -4, -1 }



☆Espero ter ajudado! tmj