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If (2^(x^2) × 8^2) / 8^(2x) = 1/8, then the value of 2^(x^2 - 2x + 1) is equal to

A8
B2
C16 ✓ Correct
D4
Correct answer: (C) 16
Explanation

The value of 2^(x^2 - 2x + 1) is 16.

Write 8 = 2^3, so 2^(x^2) * 2^6 / 2^(6x) = 2^(-3).

Equate exponents: x^2 + 6 - 6x = -3.

x^2 - 6x + 9 = 0, so (x - 3)^2 = 0 and x = 3.

2^(x^2 - 2x + 1) = 2^((x - 1)^2) = 2^4 = 16.

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