Question

if the roots of the quadratic equation $px^2+qx+r=0$ are in the ratio $l:m$ then:
(A).$(l+m)^2pq=lmr^2$
(B).$(l+m)^2 pr=lmq$
(C).$(l+m)^2 pr = lmq^2$
(D).None of these

Answer 1

Right answer is option B

Answer 2

if the roots of the quadratic equation $px^2+qx+r=0$ are in the ratio $l:m$ then:

(A).$(l+m)^2pq=lmr^2$

(B).$(l+m)^2 pr=lmq$✔✔✔

(C).$(l+m)^2 pr = lmq^2$

(D).None of these