[tex]Given\:equation\:=\:{y}^{2}\:-\:5y\:+\:3[/tex]
value of y = 5
so now evaluating y = 5
[tex]⟶\:{y}^{2}\:-\:5y\:+\:3[/tex]
[tex]⟶\:{5}^{2}\:-\:5(5)\:+\:3[/tex]
[tex]⟶\:25\:-\:25\:+\:3[/tex]
[tex]⟶\:3[/tex]
