Question

prove tht n^2- n is divisible by 2​

Answer 1

Answer:

Let n = 4,

then n^2= 16

n^2-n = 16-4 = 12

and 12 is divisible by 2 which gives 6

HOPE IT WILL HELP YOU

Answer 2

Step-by-step explanation:

now if you square any number it may be odd or even . so of you subtract with the same number with the square then it will be even

ex: (2)²= 4-2 = 2/2 = 1 ( hence it is divisible )

(7)²=49-7 = 42/2 = 12 ..

in odd multiples the even numbers will come alternatively ..