document.write( "Question 178393This question is from textbook
\n" ); document.write( ": Find the value of \"c\" that makes the trinomial a perfect square: x^2-8x+c \n" ); document.write( "

Algebra.Com's Answer #133335 by josmiceli(19441) $\"\"$ $\"About$

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$\"x%5E2+-+8x+%2B+c\"$
\n" ); document.write( "To complete the square, The rule is to take 1/2 of the
\n" ); document.write( "coefficient of $\"x\"$ and square it, so
\n" ); document.write( " $\"c+=+%28-8%2F2%29%5E2\"$
\n" ); document.write( " $\"c+=+16\"$ answer
\n" ); document.write( " $\"x%5E2+-+8x+%2B+16\"$
\n" ); document.write( " $\"x+-+4%29%5E2\"$ \n" ); document.write( "

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