If a2x+2 = 1, where is a positive real number other than 1, then x is equal to?
A. -2
B. -1
C. 0
D. 1
Answer: Option B
Solution (By Examveda Team)
$$\eqalign{ & \Rightarrow {a^{2x + 2}} = 1 \cr & \Rightarrow {a^{2x + 2}} = {a^0} \cr & \Rightarrow 2x + 2 = 0 \cr & \Rightarrow x = - \frac{2}{2} \cr & \Rightarrow x = - 1 \cr} $$This Question Belongs to Arithmetic Ability >> Algebra
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