document.write( "Question 811155: Hello, I need your help!\r
\n" ); document.write( "\n" ); document.write( "I got a system of these three equations.\r
\n" ); document.write( "\n" ); document.write( "1. 0 =4a+2b+c
\n" ); document.write( "2. -2=9a+3b+c
\n" ); document.write( "3. -2= a- b+c\r
\n" ); document.write( "\n" ); document.write( "I don't know how to change those to find out the equation y=ax^2+bx+c.\r
\n" ); document.write( "\n" ); document.write( "Thanks!
\n" ); document.write( "

Algebra.Com's Answer #488614 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
Hello, I need your help!
\n" ); document.write( "I got a system of these three equations.
\n" ); document.write( "1. 0 =4a+2b+c
\n" ); document.write( "2. -2=9a+3b+c
\n" ); document.write( "3. -2= a- b+c
\n" ); document.write( "I don't know how to change those to find out the equation y=ax^2+bx+c.
\n" ); document.write( "---------------
\n" ); document.write( "I used my TI-84 to get:
\n" ); document.write( "a = -2/3
\n" ); document.write( "b = 4/3
\n" ); document.write( "c = 0
\n" ); document.write( "===========================
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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