Question

A raiz da equacao 1 quinto (2x+4)= 2 tercos (x+2)

Answer 1

Resposta:

x=-2

Explicação passo-a-passo:

√1/5 × (2x+4) = 2/3 × (x+2)

2√1/5x + 4√1/5 =2/3x + 4/3

2x 1/√5 × x +4 × 1/√5 = 2/3x + 4/3

2x/√5 + 4/√5 = 2/3x + 4/3

2√5x/5 + 4√5/5 = 2/3x + 4/3

6√5x + 12√5 = 10x + 20

6√5x - 10x = 20 - 12√5

(6√5x - 10x) x = 20 - 12√5

x = 20 - 12√5 / 6√5 - 10

x = 2 (10 - 6√5) / 2 (3√5 - 5)

x = 2 (5 - 3√5) / - (5 - 3√5)

x = 2 × (-1)

x = -2