Question

demonstração da formula de bhaskara? heeelllpppp :)

Answer 1

Formula de Bhaskara: x=-b±√∆/2a
onde ∆ =b²-4ac
Ex= Resolva a equação x²-5x+6=0
a=1
b=-5
c=6
∆=(-5)²-4*1*6
∆=25-24
∆=1

x=-(-5)±√1/2*1
x=5±1/2
x1=5-1/2
x1=4/2
x1=2


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

S={2,3}