Tham KY's answer to Chowder's Junior College 1 H1 Maths question.
done
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clear
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Hope this helps you...
Date Posted:
7 years ago
Wait why must do -(×-1) ?
(x-1) is not the same as (1-x). In order to cancel with the other denominator, must factorise the negative out. Must be exactly the same to cancel off.
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