If 2^x-2^x-1=8 then find the value of x^3. I have attached the answer also someone please explain the steps in the answer in detail
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The answer of this question will be definitely 27
TeachMeMath:
It is 64. I have posted the picture of answer.
But I do not understand how they got 2^x-2^x/2=8 and k-k/2=8
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