Question

Resposta da equacao irracional √(7x-3)-1=x

Answer 1

√(7x - 3) - 1 = x

√(7x - 3) = x + 1

7x - 3 = x² + 2x + 1

x² - 5x + 4 = 0

d² = 25 - 16 = 9

d = 3

x1 = (5 + 3)/2 = 8/2 = 4

x2 = (5 - 3)/2 = 2/2 = 1

soma S = 4 + 1 = 5 . V = 2S = 2*5 = 10

Espero ter te ajudado :)