document.write( "Question 156824: for what values of p is 4x^2+px+49=0 a perfect square? \n" ); document.write( "
Algebra.Com's Answer #115686 by checkley77(12844)![]() ![]() ![]() You can put this solution on YOUR website! 4x^2+px+49=0 \n" ); document.write( "p=+/-28 \n" ); document.write( "(4x^2+/-28x+49)=0 \n" ); document.write( "Proof: \n" ); document.write( "2x+7 \n" ); document.write( "2x+7 \n" ); document.write( "--------------- \n" ); document.write( "4x^2+14x+14x+49=4x^2+28x+49 \n" ); document.write( "2x-7 \n" ); document.write( "2x-7 \n" ); document.write( "------------------ \n" ); document.write( "4x^2-14x-14x+49=4x^2-28x+49 \n" ); document.write( " |