Question

if roots of the quadratic equation (b-c)x^2+(c-a)x+(a-b)=0 are real and equal prove 2b=a+c ?

Answer 1

your answer for above question

Answer 2

Some intelligency is required to solve this question smoothly. So please have a look on the above solution and practice it simultaneously. You will not have any fear in these types of questions anymore on doing so.