If 2^x + 2^x+1 = 3, then find value of x?
- 1
- 2
- 0
- None of these
Explanation
2^x + 2^x+1 = 3
Take out 2^x common:
2^x(1 + 2) = 3
2^x × 3 = 3
Divide both sides by 3 → 2^x = 1
2^0 = 1 → so x = 0
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