Question

x elevado 2-2x-35 menor que 0

Answer 1

x² - 2x - 35 < 0

Δ = b²-4ac= 4+140=144
√Δ= ±√144 = ± 12

x' = (2-12)/2 = -5
x"= (2+12)/2 = 7

{ x > -5
{ x < 7
              
                {x ∈ R │-5 < x < 7}