If a2x + 2 = 1,where a is a positive real number other

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If a^{2x + 2} = 1,where a is a positive real number other than 1, then x = ?

1. - 2
2. - 1
3. 0
4. 1

Correct Option: B

Given that, a^{2x + 2} = 1
Apply the algebra Law,
p⁰ = 1
⇒ a^{2x + 2} = a⁰
Apply the algebra law
p^X = p^Y then X will be equal to Y. means X = Y;
⇒ 2x + 2 = 0
⇒ x = -2/2 = -1