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1. $11^{4 x + 12} = 5^{4 x + 12}$

Answer: Option C

Explanation:

11^{(4 x + 12)} = 5^{(4 x + 12)} \frac{11^{(4 x + 12)}}{5^{(4 x + 12)}} = 1 {(\frac{11}{5})}^{4 x + 12} = {(\frac{11}{5})}^{0} 4 x + 12 = 0 x = - 3 (A n s)

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