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Question ❓:- 4^(x+2)+2^(2x+1)-36=0,x=?​
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4 votes
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Question ❓:-
4^(x+2)+2^(2x+1)-36=0,x=?​

User Slawomir Dziuba
by
2.9k points

1 Answer

24 votes
24 votes

Answer:

  • x = 1/2

Explanation:


  • 4^(x+2)+2^(2x+1)-36=0

  • 16*4^x+2*2^(2x)-36=0

  • 16*4^x+2*4^x-36=0

  • 18*4^x = 36\\\\

  • 4^x=2\\\\

  • 2^(2x)=2^1\\

  • 2x=1\\

  • x = 1/2
User Artem Dolobanko
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