Math, asked by achu4262, 1 year ago

n square plus n is divisible by 2

kbalasaheb: n2 + n / 2

kbalasaheb: n2 + n = 2

kbalasaheb: n2 + n - 2 = 0

kbalasaheb: n2 + 2n - n - 2 = 0

kbalasaheb: n (n + 2) - n (n + 2) = 0

kbalasaheb: n (n + 2) - 1 (n + 2) = 0

kbalasaheb: n - 1 = 0 or n + 2 = 0

kbalasaheb: n = 1 or n = -2

Answers

Answered by rishi5761

1

Yes it is always divisible...

Eg. n=3

=3^2+3/2=9+3/2=12/2=6

n=2

=2^2+2/2=4+2/2=6/2=3

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