Question:medium
The value of \( x \) such that \( 3^{2x} - 2(3^{x+2}) + 81 = 0 \) is:
The value of \( x \) such that \( 3^{2x} - 2(3^{x+2}) + 81 = 0 \) is:
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Always look for a common base in exponential terms. If you see $a^{2x}$ and $a^x$, it's a strong signal that you should use a quadratic substitution.
Updated On: May 6, 2026
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The Correct Option is B
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