1. We are asked to simplify or evaluate the expression $$125 + 80a^2$$. 2. This expression consists of two terms: a constant term 125 and a term with a variable $$80a^2$$. 3. Since there are no like terms to combine, the expression is already simplified. 4. If you want to evaluate it for a specific value of $$a$$, substitute that value into $$80a^2$$ and then add 125. 5. For example, if $$a=2$$, then $$80a^2 = 80 \times 2^2 = 80 \times 4 = 320$$. 6. Adding the constant term: $$125 + 320 = 445$$. 7. Without a specific value for $$a$$, the simplified expression remains $$125 + 80a^2$$.