Question

resolva a inequação x²-6x<0

Answer 1

x² - 6x = 0

a = 1

b = 6

c = 0

Δ = (-6)² - 4 . 1 . 0

Δ = 36

____________________________

X = - b +- √Δ / 2 . a

X = 6 +- √36 / 2

x = 6 +- 6 / 2

x' = 6 - 6 / 2

x' = 0 / 2

x' < 0

x'' = 6 + 6 / 2

x'' = 12 / 2

x'' < 6

S = {x ∈ IR | 0 < x < 6 }