Jimih
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- May 20, 2021
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I was solving it mentally at first, that's why I suggested you to use x=1,This Formula is applied after you find the "D" Discriminant. Here in our Institution, we are taught the formula this Way:-
i) (-b + √D) ÷ 2(a)
ii) (-b - √D) ÷ 2(a)
Meaning I am trying to say that (-b + √D) and (-b - √D) are upon 2(a). Now this is very simple but still Because of couple of gimmicks here and there, I do get confused at times.
If you are preparing for competitive exams try using hit and trial method, but for that it will only come along with lots of pa-raik-tis only.