document.write( "Question 1062179: 1.) 2x^2 - 4x = y + 1
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document.write( " x + y = 1
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Algebra.Com's Answer #677010 by ikleyn(52781)![]() ![]() You can put this solution on YOUR website! . \n" ); document.write( "1.) 2x^2 - 4x = y + 1 \n" ); document.write( " x + y = 1 \n" ); document.write( "~~~~~~~~~~~~~~~~~~~~`\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \r\n" ); document.write( "Express y = 1-x from the second equation, and then substitute it into the first equation replacing y. You will get\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "2x^2 - 4x = (1-x) + 1,\r\n" ); document.write( "\r\n" ); document.write( "2x^2 - 4x = 2 - x,\r\n" ); document.write( "\r\n" ); document.write( "2x^2 - 3x - 2 = 0.\r\n" ); document.write( "\r\n" ); document.write( "Continue from this point.\r\n" ); document.write( "\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "For many other similar solved problems see the lesson \r \n" ); document.write( "\n" ); document.write( " - Solving the system of algebraic equations of degree 2 and degree 1, \r \n" ); document.write( "\n" ); document.write( "in this site.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Also, you have this free of charge online textbook in ALGEBRA-I in this site\r \n" ); document.write( "\n" ); document.write( " - ALGEBRA-I - YOUR ONLINE TEXTBOOK.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "The referred lesson is the part of this online textbook under the topic \"Systems of equations that are not linear\".\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |