Question

a) x 2+5 x+6=0
formula de bhaskara? me ajudaa​

Answer 1

X²+5x+6=0

a=1

b=5

c=6

∆=b²-4.a.c

∆=(5)²-4.(1).(6)

∆=25-24

∆=1

x'=-(5)+√1/2=-5+1/2=-4/2=-2

x"=-(5)-√1/2=-5-1/2=-6/2=-3

S={-3,-2}

espero ter ajudado!

boa tarde!

Answer 2

Resposta:

S={-2, -3}

Explicação passo-a-passo:

a= 1

b= 5

c=6

x² +5x +6=0

∆= b²-4.a.c

∆= 5² -4.1.6

∆= 25 - 24

∆= 1

x= - b ±√∆/2.a

x= - 5 ±√1/2.1

x= - 5 ± 1/2

x1= -5+1/2= -4/2=-2

x2= -5-1/2= -6/2=-3