document.write( "Question 677986: it says find the common solution(s).
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document.write( "y=3x^2
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document.write( "y=3x+6 \r
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document.write( "4y + 3x=12
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document.write( "2x+3y=1 \n" );
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Algebra.Com's Answer #421126 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! find the common solution(s). \n" ); document.write( "y=3x^2 \n" ); document.write( "y=3x+6 \n" ); document.write( "----- \n" ); document.write( "3x^2 = 3x + 6 \n" ); document.write( "x^2 = x + 2 \n" ); document.write( "x^2-x-2 = 0 \n" ); document.write( "Factor: \n" ); document.write( "(x-2)(x+1) = 0 \n" ); document.write( "x = 2 or x = -1 \n" ); document.write( "--- \n" ); document.write( "If x = 2, y = 12 \n" ); document.write( "If x = -1, y = 3 \n" ); document.write( "======================== \r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "4y + 3x=12 \n" ); document.write( "2x+3y=1 \n" ); document.write( "----- \n" ); document.write( "Rearrange: \n" ); document.write( "3x + 4y = 12 \n" ); document.write( "2x + 3y = 1 \n" ); document.write( "----- \n" ); document.write( "Multiply top equation by 2 \n" ); document.write( "Multiply bottom equation by 3 \n" ); document.write( "---- \n" ); document.write( "6x + 8y = 24 \n" ); document.write( "6x + 9y = 3 \n" ); document.write( "------ \n" ); document.write( "Subtract to solve for \"y\": \n" ); document.write( "y = -21 \n" ); document.write( "--- \n" ); document.write( "Solve for \"x\" using 2x + 3y = 1 \n" ); document.write( "--- \n" ); document.write( "2x +3*-21 = 1 \n" ); document.write( "2x -63 = 1 \n" ); document.write( "2x = 64 \n" ); document.write( "x = 32 \n" ); document.write( "============= \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "=============== \n" ); document.write( " \n" ); document.write( " |