Answer your classmates problems posting with and without the order of operations

Answer your classmates problems posting with and without the order of operations in one post. 
THE EQUATIONS IS ATTACH AS A IMAGE AND I NEED BOTH SOLUTIONS TO BE WRTIEN DOWN AND TAKE A PICTURE SEND AS PDF THANKS
EXAMPLE:
3 * 5 + 6 – 8 * 4
Using order of operations, the correct answer is:  Answering classmates
(15) + 6 – (32) 
15 + 6 – 32 
21 – 32 
-11
If we do not use order of operations,
3*11-8*4 
3*3*4 
9 * 4 
36 

First term in this index = t1 = 2; next term respectively t2 = 4; t3 = 6; t4 = 8

First term in this index = t1 = 2; next term respectively t2 = 4; t3 = 6; t4 = 8; ,
t2 – t↑ = 4 – 2 = 2 =
t3 – t2 = 6 – 4 = 2
t4 – t3 = 8 – 6 = 2
Thus, difference of two consecutive terms = d = 2
This general difference is a constant.
The given index is an arithmetic series.
Common difference = d = 2