# Solve for x 8*2^(2x)+4*2^(x+1)=1+2^x

2
by lomateps
did u got it?
No, I know the final answer, not the steps
ok.what is the symbol after 8*2
2 to the poer 2x
2 to the power 2x

2015-02-22T23:57:51+05:30

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Many Thanks
2015-02-23T09:24:12+05:30

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To solve this question, you need to know logarithms.
Taking log with base 2 on both sides, we get
log8 + 2xlog2 + log4 + (x+1)log2 = log1 + xlog2
3 + 2x + 2 + x + 1 = x
-2x = 6
x = -3