Question

fórmula de bhaskara 2''+2X-24=0

Answer 1

2'x^2 + 2X - 24 = 0 (:2)
x^2 + x - 12 = 0
a= 1; b = 1; c = - 12
∆ = b^2-4ac
∆ = 1^2 - 4.1.(-12)
∆ = 1 + 48
∆ = 49

x = [- b +/- √∆[/2a
x = [ - 1 +/- √49]/2.1
x' = [ - 1 + 7]/2 = 6/2 = 3
x" = [- 1 - 7]/2 = -8/2 = - 4

R.: {3; - 4}