document.write( "Question 603210: Still trying to help my son get through this.\r
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document.write( "x^-3/4=8^-1\r
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document.write( "I know you have to make like bases but how do I do that with an 8 and x?
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document.write( "also..\r
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document.write( "7^(a-sqrt b) * 7^(a+sqrt b)= 2a is what he has for an answer, why do the 7s cancel out in this chapter? He is sure they do, I thought the answer would be 49^2a
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document.write( "Thank you! \n" );
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Algebra.Com's Answer #380626 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! x^-3/4=8^-1 \n" ); document.write( "I know you have to make like bases but how do I do that with an 8 and x? \n" ); document.write( "also.. \n" ); document.write( "---- \n" ); document.write( "x^(-3/4) = 8^(-1) \n" ); document.write( "------ \n" ); document.write( "x^(-3/4) = 2^(-3) \n" ); document.write( "---- \n" ); document.write( "[x^(-3/4)]^(-4/3) = [2^(-3)]^(-4/3) \n" ); document.write( "----- \n" ); document.write( "x = 2^4 \n" ); document.write( "x = 16\r \n" ); document.write( "\n" ); document.write( "============== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "==============\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( "7^(a-sqrt b) * 7^(a+sqrt b)= 2a is what he has for an answer, why do the 7s cancel out in this chapter? He is sure they do, I thought the answer would be 49^2a \n" ); document.write( " \n" ); document.write( " |