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Help solving these exponential equations?
I need help solving problems like the ones listed below..I posted one of each example. I'm not sure how to start going about it. Thanks for your help!!
1) 3^x = 12
2) (1.06)^x = 3
3) e^x = 18
4) square root(e^x) = 50
5) 4^x = 16square root (2)
6) 25^x = 5th root (5^x)
2 Answers
- KrishnamurthyLv 78 years agoFavorite Answer
1).
3^x = 12
x = 2.262
2).
(1.06)^x = 3
x = 18.854
3).
e^x = 18
x = 2.8904
4).
sqrt (e^x) = 50
e^x = 2500
x = 7.8240
5).
4^x = 16 sqrt (2)
4^x = 16 sqrt (2)
x = 9/4
6).
25^x = 5th root (5^x)
Integer solution:
x = 0
- ?Lv 78 years ago
1) 3^x = 12
Sol: taking ln both side
x ln(3) = ln(12)
x = ln(12)/ ln(3) =2.261859507142934545........Ans
Please do all by taking ln both side as done above
