Q. If the equations $x^3+10 x^2+a x+b=0$ and $x^3+4 x^2+a x+c=0(a, b, c \in R)$ have two roots in common then
Complex Numbers and Quadratic Equations
Solution:
Correct answer is (b) $4 a=c$.Correct answer is (c) $10 a - b =0$.Correct answer is (d) sum of common roots equals 0 .
