Final answer:
The sum of the two terms is just 2 times y to the power of 2, which is written algebraically as 2y2.
Step-by-step explanation:
When combining expressions like y to the power of 2 + y to the power of 2, we simply add the coefficients of like terms.
Since both terms have the same exponent and base, they are like terms.
The coefficient in front of each term is implicitly 1.
Therefore, the sum of the two terms is just 2 times y to the power of 2, which is written algebraically as 2y2.