Question

Determinati abcisele punctelor de intersectie a graficului functiei ,, f:R-->R", f(x)=x[tex] x^2-4x+3 cuaxa OX.

Answer 1

$x^{2} -4x+3=0$
Δ=16-12=4
$x_{1}= \frac{4+2}{2}=3 \\ x_{2}= \frac{4-2}{2}=1$