Question

3x²-5x+8=0
$3x {}^{2} - 5x + 8 = 0$
cálculo​

Answer 1

Resposta:

ax²+bx+c=0

Δ = b² - 4ac

x=(-b +-√Δ)/2a

x= (-(-5) +- √121)/2*3

x'=(5+11)/6 = 16/6

x''=(5-11)/6 = -1