Question

dada a função quadratica x²-4x+3 calcule o zeros de f(x);

Answer 1

delta= b²-4a.c
delta= 4²-4.1.3=
delta= 16-12=4
x",x"= 4+ou-2/2= x'= 4+2/2= 3, x"= 4-2/2= 1