Question

4x2-7x+3=0 com a formula de bháskara????

Answer 1

Δ = b² - 4ac
Δ = 49 - 16.3
Δ = 49 - 48
Δ = 1
x = 7 +-√1/8
x = 7 +-1/8
x' = 7+1/8
x' = 8/8 = 1
x'' = 7-1/8
x'' = 6/8 = 3/4          ok