document.write( "Question 1199514: The roots of the equation x^2+2px+q differ by 1.show that p^2=q+1/4
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Algebra.Com's Answer #833438 by htmentor(1343)\"\" \"About 
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Using the quadratic formula, the two roots are (-2p + sqrt(4p^2-4q))/2 and
\n" ); document.write( "(-2p - sqrt(4p^2-4q))/2. Simplifying and setting the difference equal to 1 we get:
\n" ); document.write( "-p + sqrt(p^2-q) - (-p - sqrt(p^2-q)) = 1
\n" ); document.write( "2*sqrt(p^2-q) = 1 -> p^2-q = 1/4
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