Math, asked by subinaydas423, 6 months ago

2^x+2+2^x-1=9 solve it​

Answers

Answered by ab548
2

Step-by-step explanation:

 {2}^{x}  + 2 +  {2}^{x}  - 1 = 9 \\  \\ 2. {2}^{x}  = 9  + 1 - 2 \\  \\  {(2)}^{x + 1}  = 8 \\  \\ {(2)}^{x + 1} =  {2}^{3}  \\  \\ x + 1 = 3 \\  \\ x = 2

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