Question

Calcule os zeros das funçoes f(x)=x2-5x+6

Answer 1

Resposta:

S={2;3}

Explicação passo-a-passo:

f(x)=x2-5x+6

a=1

b=-5

c=6

∆=b²-4.a.c

∆= (-5)².-4.1.6

∆= 25-4.6

∆=25-24

∆=1

X= -b+-√1/2.a

X= -(-5)+-√1/2.1

X= 5+-1/2

X'=5+1/2

X'= 6/2

X'= 3

X''= 5-1/2

X''= 4/2

X''= 2

S={2;3}