document.write( "Question 966683: Can you please tell me how to complete the square for 4x^2+25y^2-33x+50y-311=0 \n" ); document.write( "
Algebra.Com's Answer #590820 by MathLover1(20850)\"\" \"About 
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\n" ); document.write( "\n" ); document.write( "to complete the square for \"4x%5E2%2B25y%5E2-33x%2B50y-311=0\" first group \"x\" terms together and \"y\" terms together \r
\n" ); document.write( "\n" ); document.write( "\"%284x%5E2-33x%29%2B%2825y%5E2%2B50y%29-311=0\"\r
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\n" ); document.write( "\n" ); document.write( "\"4%28x%5E2-%2833%2F4%29x%29%2B25%28y%5E2%2B2y%29-311=0\"...recall the square of difference \"%28a-b%29%5E2=a%5E2-2ab%2Bb%5E2\"=> so, we need to add and subtract \"b%5E2\"\r
\n" ); document.write( "\n" ); document.write( "\"4%28x%5E2-%2833%2F4%29x%2Bb%5E2%29-b%5E2%2B25%28y%5E2%2B2y%2Bb%5E2%29-b%5E2-311=0\"\r
\n" ); document.write( "\n" ); document.write( "...since for \"x\" variable we have \"a=1\" and \"2ab=33%2F4\", we can calculate \"b\"\r
\n" ); document.write( "\n" ); document.write( "\"2ab=33%2F4\"
\n" ); document.write( "\"2%2A1b=33%2F4\"
\n" ); document.write( "\"b=33%2F8\"\r
\n" ); document.write( "\n" ); document.write( "we do same with \"y\" variable where \"a=1\" and \"2ab=2\"=>\"b=1\"\r
\n" ); document.write( "\n" ); document.write( "then our equation will be:\r
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\n" ); document.write( "\n" ); document.write( "\"4%28x%5E2-%2833%2F8%29%29%5E2-%281089%2F16%29%2B25%28y%2B1%29%5E2-25-311=0\"\r
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\n" ); document.write( "\n" ); document.write( "\"4%28x%5E2-%2833%2F4%29%29%5E2-%281089%2F16%29%2B25%28y%5E2%2B2y%2B2%5E2%29-%285376%2F16%29=0\"\r
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\n" ); document.write( "\n" ); document.write( "\"4%28x-33%2F8%29%5E2%2B25%28y%2B1%29%5E2-6465%2F16=0\"\r
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\n" ); document.write( "\n" ); document.write( "\"4%28x-33%2F8%29%5E2%2B25%28y%2B1%29%5E2=6465%2F16\"\r
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