ACT 2019 April(Z15) Math Question 10 Explanation - ACT Helper

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2019 April(Z15) Math Question 10
Exponents, Radicals, & Scientific Notation
- Exponent Expressions
Choice F
$\frac{25^{x}}{5^{2}} = 5^{4}$ $\Rightarrow \frac{5^{2 x}}{5^{2}} = 5^{4}$ $\Rightarrow 2 x - 2 = 4$ $\Rightarrow 2 x = 6$ $\Rightarrow x = 3$
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