document.write( "Question 647859: x²-4x+3x-2=28 how do I solve this? \n" ); document.write( "
Algebra.Com's Answer #406436 by Edwin McCravy(20056)![]() ![]() You can put this solution on YOUR website! \r\n" ); document.write( "x²-4x+3x-2 = 28\r\n" ); document.write( "\r\n" ); document.write( "Combine like terms -4x and +3x as -1x\r\n" ); document.write( "\r\n" ); document.write( "x²-1x-2 = 28\r\n" ); document.write( "\r\n" ); document.write( "Add -28 to both sides to get 0 on the right:\r\n" ); document.write( "\r\n" ); document.write( "x²-1x-30 = 0\r\n" ); document.write( "\r\n" ); document.write( "Factor the left side:\r\n" ); document.write( "\r\n" ); document.write( "(x-6)(x+5) = 0\r\n" ); document.write( "\r\n" ); document.write( "Use the zero-factor property:\r\n" ); document.write( "\r\n" ); document.write( "x - 6 = 0; x + 5 = 0\r\n" ); document.write( " x = 6; x = -5\r\n" ); document.write( "\r\n" ); document.write( "Two solutions: 6 and -5\r\n" ); document.write( "\r\n" ); document.write( "Some teachers like for you to write the solution set\r\n" ); document.write( "by the roster method in order smallest to largest.:\r\n" ); document.write( " \r\n" ); document.write( "{-5, 6}\r\n" ); document.write( "\r\n" ); document.write( "Edwin\n" ); document.write( " |