The problem should read as follows:
The value of (2ˉ¹� + 2ˉ¹� + 2ˉ¹� + 2ˉ¹�)/5 is how times the value of 2ˉ¹�?
A. 3/2
B. 5/2
C. 3
D. 4
E. 5
Factor out the MOST NEGATIVE EXPONENT:
(2ˉ¹� + 2ˉ¹� + 2ˉ¹� + 2ˉ¹�)/5
= [2ˉ¹� * (2³ + 2² + 2¹ + 1)] / 5
= (2ˉ¹� * 15) / 5
= 2ˉ¹� * 3.
Thus, the given expression is 3 times the value of 2ˉ¹�.
The correct answer is
C.
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