Answer:
n^2 - 5n = -12
Step-by-step explanation:
so
4^2 = 8
and
5*4 = 20
8-20 = -12
[tex]n^{2}-13n+36[/tex]
[tex]n^{2} -5n\ -> we\ make\ substitution\ n-4\ instead\ of\ n\\(n-4)^{2} - 5(n-4) = n^{2} + 16 - 8n-5n+20 = n^{2}-13n+36[/tex]
