Question

...................................

Answer 1

Resposta:

y = 5x² – 3x – 2

Sendo Δ = (b² – 4.a.c) e Bhaskara x = (– b ± √Δ)/2.a, temos:

Δ =

Δ = 49.

x = ( 3 ± √49)/2.5

x1 = 1

x2 = – 2/5.