Lim En Jie's answer to Jason Lim's Secondary 3 A Maths Singapore question.
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I understand some calculators can solve for cubic equations I’m not sure if yours can but otherwise you just use factor theorem and T&E values of H.
This particular question is quite tricky cause will only find 2 roots since one of them is repeated root.
So have to prove that one of the roots are repeated or can use either (h+1) or (h-2) for Long division.
This particular question is quite tricky cause will only find 2 roots since one of them is repeated root.
So have to prove that one of the roots are repeated or can use either (h+1) or (h-2) for Long division.
Date Posted:
4 years ago
Thank you so much on your detailed explanation now i understand :)
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