Forums

Eqns

Mam actually dsir did using other formula.But I want to know the wrong in this formula

Answers (8)

Kindly refer to the video in which this was solved and also mention the observation you have in the solution

It is the 13 th video in eqns chapter and also the starting sum

It is the 13 th video in eqns chapter and also the starting sum

What is your observation in those problems

If I follow the procedure sir followed I'm getting answer. But I used another formula and I'm not getting answer So pls tell me where did I do wrong

We have some of roots as -b/a we do not know difference of roots so cannot apply what you have done and also U have take a^3-b^3 as (a-b)^3+3ab(a-b) but u took -3ab