Question

Resolva as seguintes inequações a) (x + 2) . (x + 4) > 0 b) (x + 2) . (-x - 2) ≤ 0

Answer 1

(x + 2) . (x + 4) > 0

x²+6x+8 > 0

x' < -4

x" > -2

b) (x + 2) . (-x - 2) ≤ 0

x² -4 ≤ 0

x' ≤ 2

x" => -2

Answer 2

Resposta:

(x + 2) . (x + 4) > 0

x²+6x+8 > 0

x' < -4

x" > -2

b) (x + 2) . (-x - 2) ≤ 0

x² -4 ≤ 0

x' ≤ 2

x" => -2

Explicação passo-a-passo: