I’m new to this app!
And i really need help..
PLEASE HELP!!!!!

Step-by-step explanation:
a) [tex]x^2 - 5x + 4 = (x - 1)(x - 4)[/tex]
b) [tex]x^2 - 10x + 9 = (x - 1)(x - 9)[/tex]
c) [tex]x^2 - 16x + 64 = (x - 8)^2[/tex]