document.write( "Question 35867: state the discriminant for 2y^2 +8y =-3\r
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Algebra.Com's Answer #21954 by AnlytcPhil(1810) You can put this solution on YOUR website! State the discriminant for\r\n" ); document.write( "2y² + 8y = -3 \r\n" ); document.write( "\r\n" ); document.write( "b^2-4ac 8^2-4(1) (-3)\r\n" ); document.write( " -360\r\n" ); document.write( "\r\n" ); document.write( "That's altogether wrong. \r\n" ); document.write( "\r\n" ); document.write( "You must first get a 0 on one side and the trinomial \r\n" ); document.write( "in descending order on the other:\r\n" ); document.write( "\r\n" ); document.write( " 2y² + 8y = -3\r\n" ); document.write( "\r\n" ); document.write( "To get zero on the right add 3 to both sides\r\n" ); document.write( "\r\n" ); document.write( " 2y² + 8y + 3 = 0\r\n" ); document.write( "\r\n" ); document.write( "Compare that to Ax² + Bx + C = 0\r\n" ); document.write( "\r\n" ); document.write( "A=2 B=8 and C=3\r\n" ); document.write( "\r\n" ); document.write( "Discriminant = B²-4AC = 8² - 4(2)(3) = 64 - 24 = 40\r\n" ); document.write( "\r\n" ); document.write( "Edwin\r\n" ); document.write( "AnlytcPhil@aol.com\n" ); document.write( " |