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secondary 4 | E Maths
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Priscilla
Priscilla

secondary 4 chevron_right E Maths

Hi, need help with bii). Answer for bi) is 9. Thank you very much.

Date Posted: 1 year ago
Views: 71

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Richard Sng
Richard Sng's answer
3 answers (A Helpful Person)
Please clarify if unsure!
Priscilla
Priscilla
1 year ago
Hi, thank you very much. But it seems that there are 2 answers. +3,-3 or +4,-4. Thank you.
Richard Sng
Richard Sng
1 year ago
For bi , you will have x=16 as an answer which will be rejected due to the range given for c(x). As bii did not specify the range, likewise you have to take the square root of 16 to give you +- 4 :)
Priscilla
Priscilla
1 year ago
I see. Tks very much!
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Lim Xin Da
Lim Xin Da's answer
25 answers (Tutor Details)
Priscilla
Priscilla
1 year ago
Thank you very much!