document.write( "Question 84728: what term should be added to x^2-2/3x ? so its a perfect square trinomial? \n" ); document.write( "
Algebra.Com's Answer #61040 by bucky(2189)\"\" \"About 
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Given:
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\n" ); document.write( "\"x%5E2-%282%2F3%29x\"
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\n" ); document.write( "Find the number that must be added to the given binomial to make it a perfect square
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\n" ); document.write( "As long as the multiplier of the \"x%5E2\" term is 1, you can use the following method:
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\n" ); document.write( "Identify the multiplier of the \"x\" term. In this problem that multiplier is \"-2%2F3\".
\n" ); document.write( "Divide that by 2. When you do, the answer is \"%28-2%2F3%29%2F2+=+-2%2F6+=+-1%2F3\". Square this answer:
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\n" ); document.write( "\"%28-1%2F3%29%5E2=+%2B1%2F9\"
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\n" ); document.write( "Thats the answer. If you add \"1%2F9\" to the original binomial you get:
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\n" ); document.write( "\"x%5E2+-+%282%2F3%29%2Ax+%2B+1%2F9\"
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\n" ); document.write( "and this trinomial factors into \"%28x+-+%281%2F3%29%29%5E2\"
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\n" ); document.write( "Hope this helps. Remember that you need the multiplier of the \"x%5E2\" term to be 1. Then
\n" ); document.write( "you divide the multiplier of the \"x\" by 2 and square it to find the constant that you
\n" ); document.write( "need to add to make the trinomial a perfect square.
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\n" ); document.write( "Hope this helps you to understand how to work this problem.
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