Question

the two equations x2-px+q=0 and x2-rx+s=0 have a common root and the second equation has equal roots. prove that 2(s+q)=pr​

Answer 1

Answer:

this means for the first equation

(x2-px+q)+(X2-rx+s)=0 -------eq(I)

for equal root

it means ✓b2-4ac/2a =0

therfore

✓r2-4S = 0 --------eq (ii)