If `p,q gt0,p+q=2` and `p^4+q^4=272`, then p and q are roots of

If p,qr are real and p!=q, then show that the roots of the equation (p-q)x^(2)+5(p+q)x-2(p-q=0 are real and unequal.

If p, a,rare real and p!=q ,then show that the roots of the equation (p-q)x^(2)+5(p+q)x-2(p-q)=0 are real and unequal.

If p, q, r are real and p ne q , then the roots of the equation (p-q)x^(2) +5(p+q) x-2(p-q) r are

If p,q are real p!=q, then show that the roots of the equation (p-q)x^(2)+5(p+q)x-2(p-q)=0 are real and unequal.

If p:q=5:7 and p-q=-4 then find the value of 3p+4q.