document.write( "Question 1024543: x-4√x-5=0\r
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document.write( "Find x. \n" );
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Algebra.Com's Answer #639928 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! x-4√x-5=0\r \n" ); document.write( "\n" ); document.write( "Find x. \n" ); document.write( "------------- \n" ); document.write( "Sub y for sqrt(x) \n" ); document.write( "--? y^2 - 4y - 5 = 0 \n" ); document.write( "(y-5)*(y+1) = 0 \n" ); document.write( "y = -1, 5 \n" ); document.write( "=============== \n" ); document.write( "sqrt(x) = -1 \n" ); document.write( "x = 1 \n" ); document.write( "---- \n" ); document.write( "sqrt(x) = 5 \n" ); document.write( "x = 25 \n" ); document.write( " \n" ); document.write( " |