Re: isi 2004 maths

Posted by Ram on Apr 25, 2012; 12:46pm
URL: http://discussion-forum.276.s1.nabble.com/isi-2004-maths-tp7495728p7499253.html

For the 1st question we can take one root as 4 and the other as -3 (am just taking some random values) now the quadratic expression is (x-4)(x+3)=0 => x2-x-12=0 and now compare this with a2 x2 + 2bx + c = 0 we get a2=1, 2b=-1, c=-12 now check the options...
only option c is correct...