Question

Persamaan

10 = (n+1) . (n-2)

Answer 1

10 = (n+1) (n-2)
10= n^2 - 2n + 1n - 2
0 = n^2 - 2n + 1n - 2 -10
0 = n^2 - n - 12

jadi persamaannya itu n^2 - n - 12 = 0

cmiiw..