document.write( "Question 252195: how do get the answer of p^2+2p-5=0 using the quadratic formula? \n" ); document.write( "
Algebra.Com's Answer #183989 by drk(1908)![]() ![]() ![]() You can put this solution on YOUR website! The quadratic formula is\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Looking at your equation of \n" ); document.write( "\n" ); document.write( "we can see that a = 1, b = 2 and c= -5. Don't forget the signs.\r \n" ); document.write( "\n" ); document.write( "PLug these into the quadratic and you get\r \n" ); document.write( "\n" ); document.write( "-2 +- sqrt(4 - 4*1*-5) / 2(1)\r \n" ); document.write( "\n" ); document.write( "(-2 +- sqrt(24))/2\r \n" ); document.write( "\n" ); document.write( "(-2 +- 2sqrt(6)) / 2\r \n" ); document.write( "\n" ); document.write( "-1 +- sqrt(6) \n" ); document.write( " |