Final answer:
To simplify the expression b⁵g⁵³g⁸b³ with positive exponents, combine like terms by adding their exponents. The simplified expression is b⁸g⁶¹.
Step-by-step explanation:
To simplify the expression b⁵g⁵³g⁸b³ with positive exponents, we can combine like terms. Since both terms have the same base, we can add their exponents together. So, b⁵ × b³ = b⁸. Similarly, g⁵³ × g⁸ = g⁶¹. Therefore, the simplified expression is b⁸g⁶¹.