Question

determine os zeros de cada funcao quadratica f(x)=x2-11x+30

Answer 1

x²-11x+30=0

a=1

b=11

c=30

Substituindo na formula:

-11+-√11²-4.1.30/2.1

-11+-√121-120/2

-11+-√1/2

-11+-1/2

x'=-11+1/2=-5

x''=-11-1/2=6