Final answer:
Options A, B, C, and D are equivalent to 25^x.
Step-by-step explanation:
To check which expressions are equivalent to 25^x, we can simplify each option and see if they give us the same result. Let's go through the options:
A. 5^x * 5^x = 5^(x + x) = 5^(2x)
B. 5 * 5^(2x) = 5^(1 + 2x) = 5^(2x + 1)
C. (5 * 5)^x = 25^x
D. 5 * 5^x = 5^(1 + x) = 5^(x + 1)
E. 5^2 * 5^x = 5^(2 + x) = 5^(x + 2)
F. 5^(2x)
So, options A, B, C, and D are equivalent to 25^x.