document.write( "Question 892520: In an AP, the sum of the first three terms is 18, and the sum of the squares of these terms is 126. Find the three terms.
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Algebra.Com's Answer #540564 by richwmiller(17219)\"\" \"About 
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a+b+c=18,
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\n" ); document.write( "b-a=d
\n" ); document.write( "c-b=d
\n" ); document.write( "a = 3, b = 6, c = 9, d = 3
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\n" ); document.write( "\n" ); document.write( "a = 9, b = 6, c = 3, d = -3\r
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