document.write( "Question 644842: (sqrt of 5-x)+1=x-2 I get x=4 or x=1 but my book says just x=4. I need to know why this is because they will both make the equation equal zero (or at least I think they do) Thanks! \n" ); document.write( "

Algebra.Com's Answer #405283 by ewatrrr(24785) $\"\"$ $\"About$

You can put this solution on YOUR website!

 
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document.write( "Hi,
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document.write( "(sqrt of 5-x)+1=x-2 
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document.write( "   |Note: x = 1, gives   
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document.write( "I get x=4 or x=1, yes...however, x = 1 is an extraneous solution and tossed out..
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document.write( "ONe needs to test solutions in cases involving square roots \n" );
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