Answer:
4s
s+s+s+s
Step-by-step explanation:
Step-by-step explanation:
Sum of 20 terms in thr arithmetic sequence adds up to -1930
Answer:
The simplified expression is given as

Step-by-step explanation:
step one:
Given the expression

step two:
First, let us open the bracket we have

step three:
collect like terms we have

step four:
we can now factor out
we have
