Plz help me T-T it’s math

a(n) = 128

Step-by-step explanation:

The formula for an arithmetic sequence is

a(n) = a1 + (n-1) d

You need to plug the numbers in to solve

a(n) = -12 + (36-1) 4

a(n) = -12 + 35 * 4

a(n) = -12 + 140

a(n) = 128

if you use photomath right away it will give you the answer not like this app that you have to wait for people.

answer: -2+√x,-2-√x

i hope this , i don't know if you're looking for a pair or not.