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An algebraic exponent problem by Ad

Algebra Level 2

$\large 2^{2x+1} - 9 \cdot 2^x + 4 = 0 \quad,\quad x= \ ?$

0 1,-3 1,2 2,-1 -2,-1 -2,1

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by Arñåb Ûnförgêtãblê

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