document.write( "Question 93699: Please help me, I can not get this to factor- 7x^2+34x-5 \n" ); document.write( "
Algebra.Com's Answer #68249 by jayanthihemkos@yahoo.com(87)![]() ![]() ![]() You can put this solution on YOUR website! 7x^2+34x-5\r \n" ); document.write( "\n" ); document.write( "Here we apply quadratic formula\r \n" ); document.write( "\n" ); document.write( "x= -b+or- sqrt of b^2 -4ac/2a\r \n" ); document.write( "\n" ); document.write( "here a = 7 , b= 34 , c= -5\r \n" ); document.write( "\n" ); document.write( " ==> -34 +/- sqrt of (34)^2-( 4*7*-5)/2*7\r \n" ); document.write( "\n" ); document.write( "==> -34 +/- sqrt of 1156+140/14\r \n" ); document.write( "\n" ); document.write( "==> -34+/- sqrt of 1296/14\r \n" ); document.write( "\n" ); document.write( "==> -34 +/- 36/14\r \n" ); document.write( "\n" ); document.write( "==> 2( -17 +/- 18)/2*7 ( 2 is taken as common factor)\r \n" ); document.write( "\n" ); document.write( "==>-17 +/- 18 /7 ( 2 in the numerator and denominator gets cancelled)\r \n" ); document.write( "\n" ); document.write( " x = -17 + 18/ 7 and -17 -18/7\r \n" ); document.write( "\n" ); document.write( " x = 1/7 and x = -35/7 = -5\r \n" ); document.write( "\n" ); document.write( "Hence the solution for x= 1/7 and -5\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |