document.write( "Question 554461: x^2-4y^2-4x+8y=0 \n" ); document.write( "

Algebra.Com's Answer #362127 by lwsshak3(11628) $\"\"$ $\"About$

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x^2-4y^2-4x+8y=0
\n" ); document.write( "complete the square
\n" ); document.write( "(x^2-4x+4)-4(y^2-2y+1)=4-4
\n" ); document.write( "(x-2)^2-4(y-1)^2=0
\n" ); document.write( "(x-2)^2=4(y-1)^2
\n" ); document.write( "take sqrt of both sides
\n" ); document.write( "x-2=2(y-1)=2y-2
\n" ); document.write( "2y=x
\n" ); document.write( "y=x/2 \n" ); document.write( "

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