document.write( "Question 598192: Solve.
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document.write( "4^x=(1/square root of 2) \n" );
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Algebra.Com's Answer #378523 by math-vortex(648)![]() ![]() You can put this solution on YOUR website! Hi, there-- \n" ); document.write( ". \n" ); document.write( " \n" ); document.write( ". \n" ); document.write( "Multiply the right hand side of the equation by \n" ); document.write( " \n" ); document.write( " \n" ); document.write( ". \n" ); document.write( "Rewrite each term in the equation in terms of base 2 using exponent rules. 4=2^2, sqrt(2)=2^(1/2), and 2=2^1. \n" ); document.write( ". \n" ); document.write( " \n" ); document.write( ". \n" ); document.write( "When you raise an exponential expression to a power, you multiply the exponents, so (2^2)^x=2^2x. \n" ); document.write( ". \n" ); document.write( "When you divide exponential expressions, you subtract the exponents, so 2^(1/2)/2^1=2^(1/2-1)=2^(-1/2)\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " \n" ); document.write( ". \n" ); document.write( "We have 2 raised to a power on both sides of the equation. Since both expressions are equal, the exponents must be the same, So \n" ); document.write( " \n" ); document.write( " \n" ); document.write( ". \n" ); document.write( "You definitely want to check your work on these sorts of problems. Use the original equation. \n" ); document.write( ". \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( ". \n" ); document.write( "4^(1/4) means the fourth root of 4. The fourth root of 4 is the square root of 2 since (sqrt(2))(sqrt(2))(sqrt(2))(sqrt(2))=4. \n" ); document.write( " \n" ); document.write( ". \n" ); document.write( "That's it. x is -1/4. \n" ); document.write( "You can also solve this using logarithms. Feel free to email if you'd like to see that solution. \n" ); document.write( ". \n" ); document.write( "Ms.Figgy \n" ); document.write( "math.in.the.vortex@gmail.com \n" ); document.write( " \n" ); document.write( " |