How can I get an equation that fits this

Step-by-step explanation:

non real roots come in pairs. so an example of a non real root would be y=ax + bi and y = ax - bi.

the fact that it is rational with a multiplicity of 2 means that their is a root that is raised to the power of 2. So we now have y = (x +a)^2 or something like it.

The leading coefficient is even. That means y = 2c * (x + 2)^2 (ax + bi)(ax - bi)

The fact that the two variables (x and y) both go to minus  infinity means that c<0. c is minus).  

first, let's see what the pattern is.

58 - x = 47

46 - x = 36

x = 9

so this means that the term after 25 is 25 - 9:

the next term in the sequence is 16.