I think the answer is 20.34 I might be wrong someone else could check
Answer:

Step-by-step explanation:
To find the number in scientific notation you want to find how many times you have to move the decimal to get the decimal to be right after the first non-zero number. If you move to the left the exponent is positive and if you move it to the right the exponent is negative. The answer would be
.
(x-3)^2 / (271/2) + y^2 / (271/4)=1.
Hope I helped☺☺
-500 is the answer, I am sure