Question

X²+5x+6=0??????????????

Answer 1

Resposta:

Explicação passo a passo:

a=1

b=5

c=6

x=-5+-V5²-4.1.6/2.1

x=-5+-V25-24/2

x=-5+-V1/2

x=5+-1/2

x'=5+1/2=6/2=3

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

S={2,3}