Question

( 3x - 1/2)² + 3x = 5/4

Answer 1

Resposta:

Δ = 2² – 4.3.(– 1)

Δ = 4 + 12

Δ = 16

x = – 2 ± √16

2.3

x = – 2 ± 4

6

x' = – 2 + 4 = 2 = 1

6 6 3

x'' = – 2 – 4 = – 6 = – 1

6 6