klarissamireles4350 klarissamireles4350 07-03-2018 Mathematics contestada If p(q-r)x^2 +q(r-p)x + r(p-q) has equal roots,then, 2/q=?? a)p+ 1/r c)p+r b) 1/p +r d) 1/p + 1/r
