Question

Determine as raizes das equacoes do 2 grau 2×2+5×-3=0

Answer 1

Resposta:

Explicação passo a passo:

a=2

b=5

c=-3

x=-5+-V5²-4.2.-3/2.2

x=-5+-V25+24/4

x=-5+-V49/4

x=-5+-7/4

x'=-5+7/4=2/4=1/2

x''=-5-7/4=-12/4=-3

S={-3,1/2}