document.write( "Question 586189: 4e^x+2=32\r
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document.write( "ln(5x-3)^1/3=2\r
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document.write( "2x^(3x-2)+4=16\r
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document.write( "2e^(x-2)=e^x+7\r
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document.write( "1/3lnx+ln2-ln3=3\r
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document.write( "ln(x+2)-ln4=3\r
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document.write( "Hello. Thank you for your time. I have a test and Im practicing on these problems, but I keep getting something wrong. Can you work them out please? Thank you sooo much!!! =) \n" );
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Algebra.Com's Answer #373811 by ankor@dixie-net.com(22740)![]() ![]() You can put this solution on YOUR website! 4e^x + 2 = 32 \n" ); document.write( "4e^x = 32 - 2 \n" ); document.write( "4e^x = /4 \n" ); document.write( "e^x = 7.5 \n" ); document.write( "use nat logs here \n" ); document.write( "ln(e^x) = ln(7.5) \n" ); document.write( "the log equiv of exponents \n" ); document.write( "x*ln(e) = ln(7.5) \n" ); document.write( "ln of e is 1 therefore \n" ); document.write( "x = ln(7.5} \n" ); document.write( "x = 2.015 \n" ); document.write( ": \n" ); document.write( ": \n" ); document.write( "ln(5x-3)^1/3 = 2 \n" ); document.write( "Cube both sides \n" ); document.write( "ln(5x-3) = 2^3 \n" ); document.write( "ln(5x-3) = 8 \n" ); document.write( "find the anti-log of both sides ( \n" ); document.write( "5x - 3 = 2981 \n" ); document.write( "5x = 2981 + 3 \n" ); document.write( "x = 2984/5 \n" ); document.write( "x = 596.8 \n" ); document.write( ": \n" ); document.write( ": \n" ); document.write( "2x^(3x-2) + 4 = 16 \n" ); document.write( "2x^(3x-2) = 16 - 4 \n" ); document.write( "2x^(3x-2) = 12 \n" ); document.write( "x^(3x-2) = 12/2 \n" ); document.write( "x^(3x-2) = 6 \n" ); document.write( "use common logs \n" ); document.write( "log(x^(3x-2)) = log(6) \n" ); document.write( "(3x-2)log(x) = .778 \n" ); document.write( "log(x) = \n" ); document.write( "That's about all I can do with this \n" ); document.write( ": \n" ); document.write( ": \n" ); document.write( "2e^(x-2) = e^x + 7 \n" ); document.write( "2e^(x-2) - e^x = 7 \n" ); document.write( "I don't think there is a solution here \n" ); document.write( ": \n" ); document.write( ": \n" ); document.write( " \n" ); document.write( "ln(x^(1/3)) + ln(2) - ln(3) = 3 \n" ); document.write( "combine as a single log \n" ); document.write( ": \n" ); document.write( " \n" ); document.write( "find the antilog (e^10) of 3, gets rid of ln \n" ); document.write( " \n" ); document.write( ": \n" ); document.write( " \n" ); document.write( ": \n" ); document.write( " \n" ); document.write( ": \n" ); document.write( " \n" ); document.write( "; \n" ); document.write( " \n" ); document.write( "Cube both sides: \n" ); document.write( "x = 30.1283^3 \n" ); document.write( "x ~ 27348 \n" ); document.write( " |