This is pretty advanced.
Subtract "n" from the equation.
You get 8=2.
That is wrong.
So now we have to make up numbers, called imaginary numbers. Otherwise known as letters.
Now, since 8 doesn't equal 2,it is false. False starts with F. That is your answer.
Math can be hard, but stick to it.
8+n
N = 12
N/2 = 3 so N = 6
n=1 is the the lowest level there is.
There can be no formula for the number of triangles within the polygon. Any triangle can be split into two by a line from one of the vertices to the opposite side. Thus the number of triangles can be increased by one by simply splitting one triangle. And then THAT triangle can be split in two, and the that one, ...
8+n
decreased
eight eight
N = -4 and 3/8
Eight.
n = 1.5
2
N = 12
3n + 15 equals 3 times the number n, the answer to which is increased by 15. It can only be evaluated if the value of n is known. The expression can be factorised but that is of marginal help in evaluating it.
N/2 = 3 so N = 6
two
n=1 is the the lowest level there is.