if the equations x square+ px+q=0 and x square+p’x+q’=0 have a common root , then it is equal to (a)- p-p’/q-q’ (b)- p+p’/q+q’ (c)- -(q-q’)/(p-p’) (d)- q+q’/p+p’

akash kumar mahato

10 Years agoGrade 12th pass