Answer:
The simplified form for the expression (y^8)(y^2) is y^10.
Explanation:
The following rules apply for the product of two factor with the same base:
(b^n)(b^m) = a^(n+m)
In other words, result the same base powered to the sum of the powers.
In this particular case the base is y and, m and n are 8 and 2 respectively:
(y^8)(y^2) = y^(2+8) = y^10