Question

the value of expression n^2/2 + n/2 when n =12

please answer my question
or I will be sad :( ​

Answer 1

Answer:

If equation from, multiply by sides by n, to get:

2n + 2 = 2 + n^2

or

n^2 - 2n = 0

which factor to:

n (n-2) =0

which gives two answer:

n=0 and n=2

final answer:

n=0

HOPE IT'S HELP YOU