Question

x elevado a 2 - 2x - 24 =0 são

Answer 1

∆= (-2)² -4.1.(-24)= 4 +96= 100 => √∆=10
x= -b±√∆/2a
x = 2±10/2
x' = 2+10/2 = 12/2 = 6 ✓
x" = 2-10/2 = -8/2= -4 ✓

Answer 2

x^2 - 2x - 24 = 0

Explicação passo-a-passo:

d = 4 + 96 = 100

x1 = (2 + 10)/2 = 12/2 = 6

x2 = (2 - 10)/2 = -8/2 = -4