Final answer:
To find an equivalent expression for 5^5 * 5^3 * 5^7, we add the exponents together to get 5^15.
Step-by-step explanation:
To find an equivalent expression for 5^5 * 5^3 * 5^7, we can use the property of exponents that states when you multiply two powers with the same base, you add their exponents. Applying this property, we can add the exponents of 5 together: 5^5 * 5^3 * 5^7 = 5^(5+3+7)
Next, we simplify the exponent by adding the exponents together: 5^(15)
Therefore, an equivalent expression for 5^5 * 5^3 * 5^7 is 5^(15).