Question

Raiz da funçao real
f(x)=x²-4x+3
Me ajudeeem

Answer 1

X^2-4x+3

∆=b^2-4.a.c
∆=(-4)^2-4.1.3
∆=16-12
∆=4

X=-b+-√∆/2a
X=4+-√4/2.1
x=4+-2/2

X'=4+2/2
X'=6/2
X'=3

X"=4-2/2
X"=2/2
X"=1