Question

os zeros raizes da funcao y=x²-4x+3

Answer 1

delta =-4^2 - 4*1*3
delta = 16 - 12
delta = 4

x = (-b +/- raiz do delta)/2

x1 = (4 + 2) / 2
x1 = 3

x2 = (4 - 2) / 2
x2 = 1

entao
zero da funcao = ( 3 ; 1 )