Question

n²-17n+52=0 middle term spilt up this?

Answer 1

your answer is here
n^2-17n+52=0
n^2-13n-4n+52=0
n(n-13)-4(n-13)=0
(n-4)(n-13)=0
n-4=0 or n-13=0
n=4 or n=13

Answer 2

=n²-17n+52=0
=n²-13n-4n+52=0
=n(n-13)-4(n-13)=0
=(n-13)(n-4)=0
=n=13 or 4