Hey guys I really need help. You don't have to give the answer I just really need an explanation as to how to find the roots with work, thank you so much.
Find the roots of f(n)=n^2-2n-15.
Tip: The ^2 means "to the power of" so n^2 is n to the power of 2.
Please help!

Step-by-step explanation:

1. by making factors

consider ax²+bx+c=0

if a×c or ac>0 , then break b=d+e such that de=ac

if ac<0,then write b=d-e (e.g.,5-2=3)

such that de=ac

here n²-2n-15

1×-15=-15

-2=-(5-3)

5×-3=-15

n²-2n-15=n²-(5-3)n-15

=n²-5n+3n-15

=n(n-5)+3(n-5)

=(n-5)(n+3)

roots are n-5=0,n=5 and n+3=0,n=-3

2. by using formula

ax²+bx+c=0

i get you, what you should do is think of the positive things that would come out of it. it will make yours parents proud and raise your grade. you should always try and if you can't focus tell the teacher.

well what did you do it matters what you did : )

step-by-step explanation: