document.write( "Question 180877: How do you find a quadratic equation if you are only given the solution \n" ); document.write( "
Algebra.Com's Answer #135607 by nerdybill(7384)![]() ![]() You can put this solution on YOUR website! How do you find a quadratic equation if you are only given the solution \n" ); document.write( ". \n" ); document.write( "Let's say, for example, you were given that the solutions of a quadratic is: \n" ); document.write( "x = {-3, 6} \n" ); document.write( ". \n" ); document.write( "Given that, you can say that the following are factors: \n" ); document.write( "(x+3) \n" ); document.write( "and \n" ); document.write( "(x-6) \n" ); document.write( "That is, if you saw: \n" ); document.write( "(x+3)(x-6) = 0 \n" ); document.write( "you would say the solutions are x = {-3, 6} \n" ); document.write( ". \n" ); document.write( "To find the quadratic, multiply the two factors: \n" ); document.write( "(x+3)(x-6) \n" ); document.write( "Applying FOIL: \n" ); document.write( "x^2 - 6x + 3x - 18 \n" ); document.write( "x^2 - 3x - 18 (This would be your quadratic)\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |