Answer:
2·x²+4
Step-by-step explanation:
The sum is an answer to an addition problem and 2 times a number means to multiply by 2. That number is squared so you it's to the second power.
Answer:
2•n^2+4=sum
Step-by-step explanation:
If two times a
number squared and four = sum,
then 2 • n^2 + 4 = sum
