Zhe Xun's answer to Cindy's Secondary 1 Maths Singapore question.
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Hope this helps
Date Posted:
3 years ago
Thank you very much. Can help me with this factorisation?
2/5 st - 4/15 t
2/5 st - 4/15 t
2/5st -4/15t
=t(2s/5 - 4/15)
=t(6s/15 - 4/15)
=t[(6s-4)/15]
= 6/15t(s - 2/3)
= 2/5t(s-2/3)
^can be done in 1 or 2 steps if you can viualize it well enough
=t(2s/5 - 4/15)
=t(6s/15 - 4/15)
=t[(6s-4)/15]
= 6/15t(s - 2/3)
= 2/5t(s-2/3)
^can be done in 1 or 2 steps if you can viualize it well enough
But my ans sheet is 2/5 t (s-2/3 t).
Is it meant to be 2/5st - 4/15 t^2?
The question given is 2/5 st - 4/15 t.
In that case i dont understand why the ans has 2 “t”s. But i have added on to my original comment
Then maybe the answer sheet is wrong. Thank you for helping me.
No problem!
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