Answer:
x = 
Step-by-step explanation:
5(x-2)^2= 15 ←add 29 on both sides
(x-2)^2= 3 ← divide by 5 on both sides
x-2=
← find the sq root of both sides
x=
← add 2 on both sides
The answer is 27/23. The way you listed the answers is confusing so I’m not giving a letter. Because [17+10]/[17+6]= 27/23
*I think you meant scientific notation.*
23 in scientific notation would be 2.3 x 10^1.
To multiply it by itself three time eg 2x2x2