Question

Resolva analicamente, x²-10x≥0

Answer 1

x² - 10x = 0 => x(x - 10) = 0
x = 0 ou x - 10 = 0 => x = 10

--------------------0....................10---------------------
            +                     -                     +

S = { x ∈ IR/ x ≤ 0 ou x ≥ 10 }