document.write( "Question 442648: Give the correct final term for the following expression to ensure that the resulting trinomial is a perfect square trinomial.
\n" ); document.write( " x^2-20x\r
\n" ); document.write( "\n" ); document.write( "Please show me the steps to get the answer. Thanks
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Algebra.Com's Answer #305369 by swincher4391(1107)\"\" \"About 
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Complete the square:\r
\n" ); document.write( "\n" ); document.write( "c = (b/2)^2\r
\n" ); document.write( "\n" ); document.write( "c= (-20/2)^2 = 100\r
\n" ); document.write( "\n" ); document.write( "The final term would be +100.
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