Question

what is the absolute value of n^2+6n-27

Answer 1

What do mean by absolute value?

Answer 2

\[\left| n ^{2} +6n-27\right|\]

Answer 3

the question asks to find all integers n which is a prime number

Answer 4

I am assuming you mean, Find all n for which \(\left| n ^{2} +6n-27\right|\) is a prime number right?

Answer 5

yes, correct. Should there be two cases for which it equals to zero and 1?

Answer 6

I think \(n=-8\) and \(n=4 \) are only two cases.

Answer 7

can you explain how you got to that result?

Answer 8

(n + 9) (n - 3) will be prime when either of (n+9) or (n+3) is 1

Answer 9

Got it, thanks :)

Answer 10

Glad to help :)