Question

me ajudem por favor

a) 3x²-4x=0

b) 5x²+10x=0​

Answer 1

Resposta:

Explicação passo-a-passo:

a) 3x² - 4x = 0

→ x × (3x - 4) = 0

→ x = 0 ....(i)

→ 3x - 4 = 0 ....(ii)

(ii).

→ 3x - 4 = 0

→ 3x = 0 + 4

→ 3x = 4

→ x = 4/3

HP = {0 , 4/3}

b) 5x² + 10x = 0

→ 5x × (x + 2) = 0

→ x × (x + 2) = 0

→ x = 0 ....(i)

→ x + 2 = 0 ....(ii)

(ii).

→ x + 2 = 0

→ x = 0 - 2

→ x = -2

HP = {-2 , 0}