document.write( "Question 775822: Find the constant term that should be added to make the following expression a perfect-square trinomial. X^2-8x \n" ); document.write( "

Algebra.Com's Answer #473183 by tanjo3(60) $\"\"$ $\"About$

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To find the third term, use the formula $\"%28b%2F2%29%5E2\"$ :
\n" ); document.write( " $\"c+=+%28-8%2F2%29%5E2\"$
\n" ); document.write( " $\"c+=+%28-4%29%5E2\"$
\n" ); document.write( " $\"c+=+16\"$ \r
\n" ); document.write( "\n" ); document.write( "The perfect square trinomial is $\"x%5E2+-+8x+%2B+16\"$ . \n" ); document.write( "

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