Two marks exercise problems VIII — task. Mathematics State Board, Class 8.

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Solve for

$x$ :

(i)

$\frac{2^{2 x - 1}}{2^{x + 2}} = 4$

$x =$

(ii)

$\frac{5^{5} \times 5^{- 4} \times 5^{x}}{5^{12}} = 5^{- 5}$

$x =$

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