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 is equal to

1. –2
2. –1
3. 0
4. 1

Correct Option: B

We know that a° = 1
∴ a^{2x + 2} = 1 = a°
⇒ 2x +2 = 0

⇒ x =	− 2	= −1
	2