document.write( "Question 972410: Hello! I need help on solving these systems of equations, quadratic\r
\n" ); document.write( "\n" ); document.write( " $\"9y%5E2%2B77x-190=0\"$ ,
\n" ); document.write( " $\"14x%5E2-9y%5E2-7x-6=0\"$ \n" ); document.write( "

Algebra.Com's Answer #594733 by amarjeeth123(569) $\"\"$ $\"About$

You can put this solution on YOUR website!
9y^2+77x-190=0..........equation 1
\n" ); document.write( "14x^2-9y^2-7x-6=0.......equation 2
\n" ); document.write( "9y^2=190-77x............equation 3
\n" ); document.write( "Substituting equation 1 in 2 we get
\n" ); document.write( "14x^2-9y^2-7x-6=0
\n" ); document.write( "14x^2-190+77x-7x-6=0
\n" ); document.write( "14x^2+70x-196=0
\n" ); document.write( "x^2+5x-14=0
\n" ); document.write( "x^2+7x-2x-14=0
\n" ); document.write( "x(x+7)-2(x+7)=0
\n" ); document.write( "(x-2)(x+7)=0
\n" ); document.write( "x=2
\n" ); document.write( "Substituting in equation 1 we get,
\n" ); document.write( "9y^2+154-190=0
\n" ); document.write( "9y^2=36
\n" ); document.write( "y^2=4
\n" ); document.write( "y=2
\n" ); document.write( "x=2 and y=2 is the solution. \n" ); document.write( "

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