Question

Me ajudem dinovo rs
X2+7x +5=0

Answer 1

x² + 7x + 5 = 0


delta = b² - 4.a.c

a = 1
b = 7
c = 5

delta = 7² - 4.1.5
delta = 49 - 20
delta = 29


x = -b ± √delta/2.a

x = -7 ± √29/2.1

x = (-7 + √29)/2

x = (-7 - √29)/2


s={ (-7 + √29)/2, (-7 - √29)/2 }