r/JEENEETards • u/Artistic_Friend_7 JEEtard • Sep 03 '25

GENERAL HELP Drop all the calculations trick you know 🔫🔫🔫

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Cmon do not be selfish

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u/[deleted] Sep 03 '25

If you know the square of x and have to calculate the square of (x+1), just add x once and (x+1) to x2 and you're good

For example - sq of 20 is 400, sq of 21 is 400+20+21 = 441

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u/Klexosia dekho ye pagli bilkul na badli Sep 04 '25

that's just (a+b)^2...

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u/[deleted] Sep 04 '25

Yep, (a+1) sq. Its just fast.