2nd will be D
- Soumyabrata Mondal i knw......give da solutionUpvote·0· Reply ·2013-03-23 23:03:37
2nd will be D
for 2nd one
x2-x-6=+(x+2)
taking +ve sing first we get,
x2-x-6=x+2
or,x2-2x-8=0
x=2,orx=4
taking -ve sign we get,
x2-x-6=-x-2
or,x2-4=0
x=2,or x=-2
so x=-2,2,4