Answer:
x = 6
Explanation:
25^(x + 4) = 5^20
Write 25 as a power of 5:
(5^2)^(x + 4) = 5^20
Use exponent rules:
5^(2x + 8) = 5^20
Equate the exponents:
2x + 8 = 20
2x = 12
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