document.write( "Question 164961This question is from textbook Elementary and Intermediate
\n" ); document.write( ": 64.) Find all real solutions to each equation.\r
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Algebra.Com's Answer #121585 by Edwin McCravy(20055) $\"\"$ $\"About$

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document.write( "Put parentheses around the first two terms:\r\n" );
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document.write( "Notice that  occurs in two places, so let the\r\n" );
document.write( "variable part of the middle term, in this case the whole\r\n" );
document.write( "middle term, be equal to the letter .\r\n" );
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document.write( "That is to say we are letting \r\n" );
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document.write( "Now we square both sides:\r\n" );
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document.write( "So we substitute  for  in the original \r\n" );
document.write( "equation, and  for \r\n" );
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document.write( "becomes the much simpler looking equation:\r\n" );
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document.write( "Factoring:\r\n" );
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document.write( "Using the zero-factor property,\r\n" );
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document.write( "So now we have to substitute back.\r\n" );
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document.write( "We can tell immediately that  has no\r\n" );
document.write( "solution because square roots when written as a radical\r\n" );
document.write( "are never negative, so that square root on the left\r\n" );
document.write( "could not equal to -2 on the right.\r\n" );
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document.write( "So we solve\r\n" );
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document.write( "Square both sides:\r\n" );
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document.write( "Edwin

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