document.write( "Question 62331: sqrt(3x-5) - sqrt(x+7)=2 solve for x...may be more than one answer \n" ); document.write( "
Algebra.Com's Answer #854045 by ikleyn(53742) You can put this solution on YOUR website! . \n" ); document.write( "sqrt(3x-5) - sqrt(x+7)=2 solve for x...may be more than one answer \n" ); document.write( "~~~~~~~~~~~~~~~~~~~~~~~~~\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " The answer in the post by @jai_kos, giving two solutions x= 2 and x= 18, is incorrect.\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Of two possible values, x= 2 and x= 18, only x= 18 is the actual solution.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Other value, x= 2, is EXTRANEOUS solution, which does not satisfies the original equation \n" ); document.write( "This extraneous solution should be rejected at the checking process, which @jai_kos neglected to make.\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |