Question

Combine like terms:

(7y2 - 3y) +8y2 - 8y)

Answer 1

The like terms are:
7y^2 and 8y^2
-3y and -8y.
Add them.
7y^2 + 8y^2
= 15y^2
-3x + (-8y)
= -3y - 8y
= -11y
So the answer would be 15y^2 - 11y .

Answer 2

i got that answer so perfect!