Question

(n^2+1) -n^2 equals ?

Answer 1

$( {n}^{2} + 1) - {n}^{2} \\ \\ = {n}^{2} + 1 - {n}^{2} \\ \\ = 1.$

Answer 2

Answer:

(n + 1 ) - 2n - n^2

Step-by-step explanation:

( n^2 + 1) = ( n^2 + 1^2 )

a^2 + b^2 = ( a + b ) - 2ab

= (n + 1 ) - 2n

(n + 1 ) - 2n - n^2