document.write( "Question 1054651: If 4^(x-1)=9, find the values of 2^x and 8^-x \n" ); document.write( "

Algebra.Com's Answer #669838 by ikleyn(52791) $\"\"$ $\"About$

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\n" ); document.write( "If 4^(x-1)=9, find the values of 2^x and 8^-x
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document.write( "If  = 9,  then   = 9.\r\n" );
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document.write( "Then  = 36,  or   = 36,   or   = 36.\r\n" );
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document.write( "Then  =   and,  hence,   = 6.\r\n" );
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document.write( "Having this, we can write  =  =  =  = .\r\n" );
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