Question

x elevado a 2 - x - 6=0​

Answer 1

fórmulas de bhaskara:

∆ = (b)^2 - 4.a.c

x = (-b) ± √∆/2.a

a= 1 b= -1 c= -6

∆ = (-1)^2 - 4. 1. (-6)

∆ = 1 + 24

∆ = 25

x = -(-1) ± √25/2.1

x1 = 1+5/2

x1 = 6/2

x1 = 3

x2 = 1 - 5/2

x2 = -4/2

x2 = -2