Answer:
15y² - 11y
Explanation:
We have to combine like terms in the given expression :
(7y² - 3y) + (8y² - 8y)
Here second degree term y² and y are the like terms.
So by combining these terms we can solve this.
(7y² + 8y²) - (3y + 8y)
= 15y² - 11y
Therefore, answer is 15y² - 11y