document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=458365>Question 458365</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Given that p and q are the roots of the quadratic equation 2x^2+2px=q^2,if p-q=6 find the value of pq,thanks~~ </SPAN>\n" );
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document.write( "==> The sum of the roots are p + q = -p, or 2p = q.\r<BR>\n" );
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document.write( "Now p - q = 6 ==> p - 2p = 6, or p = -6.\r<BR>\n" );
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document.write( "==> q = 2*-6 = -12, so that pq = -6*-12 = 72. </SPAN>\n" );
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