Respuesta :

[tex] \bf f(x)=x^2-4x+3\qquad \qquad f(-5)=(-5)^2-4(-5)+3
\\\\\\
f(-5)=25-4(-5)+3\implies f(-5)=25+20+3
\\\\\\
f(-5)=45+3\implies f(-5)=48 [/tex]

jog2228

Answer: 48

Step-by-step explanation: