SOLUTION: Solve 5^(2x+1) >or= 50.

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Question 42260: Solve 5^(2x+1) >or= 50.
Answer by fractalier(6550) About Me  (Show Source):
You can put this solution on YOUR website!
From
5^(2x+1) ≥ 50
take the log of both sides and then use the power rule, before solving...we get
log(5^(2x+1)) ≥ log 50
(2x+1)*log 5 ≥ log 50
2x + 1 ≥ log 50 / log 5
2x ≥ (log 50 / log 5) - 1
x ≥ [(log 50 / log 5) - 1] / 2
or
x ≥ .7153