Question

-x²+5x-6=0 resolva utilizando a fórmula de Báskara

Answer 1

5²-4x(-1)x(-6)
25-24
=1
-5+-1/-2
-5+1=-4/-2= +2
-5-1=-6/-2= +3

Answer 2

-x² + 5x - 6 = 0


delta = b² - 4.a.c

a = -1
b = 5
c = -6

delta = 5² - 4.(-1).(-6)
delta = 25 - 24
delta = 1

x = -b ± √delta/2.a


x = -5 ± √1/2.(-1)

x = -5 ± 1/-2

x = -5 - 1/-2 = -6/-2 = 3

x = -5 + 1/-2 = -4/-2 = 2


s={ 3, 2 }