6^2 + 17 + 12
First, let's start with

. Basically, the '2' above the 6 indicates that the number appears twice in multiplying.

can be described as 6 × 6 as well. 36 should be your answer for 6 squared.

Second, our problem should look like: 36 + 17 + 12. One can simply do this on a calculator or count on their fingers. Once you add all of the numbers up, you should get 65.
Answer:
Y=(x-4)/2x-11x+28
y=(x/2x)-(4/2x)-11x+28
y=0.5x-2x-11x-28
1. subtract like terms
2. add 28 on both sides
3. so on and so forth...
87 ⇒ 90
34 ⇒ 30
---- -----
121 120
where is the question?????????