document.write( "Question 103662: Find the constant term that should be added to make the following expression a perfect-square trinomial. x^2 + 2x \n" ); document.write( "

Algebra.Com's Answer #75367 by Fombitz(32388) $\"\"$ $\"About$

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Let's compare it.
\n" ); document.write( " $\"%28x%2Ba%29%5E2=x%5E2%2Bhighlight%282ax%29%2Ba%5E2\"$ Perfect square.
\n" ); document.write( "Your equation is
\n" ); document.write( " $\"x%5E2%2Bhighlight%282x%29\"$
\n" ); document.write( "The highlighted portion gives you
\n" ); document.write( " $\"2ax=2x\"$
\n" ); document.write( " $\"2ax%2F2x=2x%2F2x\"$
\n" ); document.write( " $\"a=1\"$
\n" ); document.write( "So your $\"a%5E2\"$ term that you need to add to make it a perfect square is
\n" ); document.write( " $\"a%5E2+=+1\"$
\n" ); document.write( " \n" ); document.write( "

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