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secondary 3 | A Maths
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lana <3
Lana <3

secondary 3 chevron_right A Maths chevron_right Singapore

I can’t seem to get the correct answer for 3! please help me solve asap !!!

Date Posted: 2 years ago
Views: 344

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Gerry Lim
Gerry Lim's answer
33 answers (Tutor Details)
1st
Might want to check if my expansion is correct. For part ii use Discriminant property to check if there are roots
Eric Nicholas K
Eric Nicholas K
2 years ago
Part i incorrect. Coefficient of x^4 is 8, so we need to multiply the terms by 4. This should be done somewhere in the intermediate workings.
Eric Nicholas K
Eric Nicholas K
2 years ago
f(x) = 4 (your first bracket expression) (your second bracket expression)
Gerry Lim
Gerry Lim
2 years ago
Yes, agree. I was wondering why something felt weird abt the equation. Asker pls take note!
lana <3
Lana <3
2 years ago
yes your answer is correct and i understand the explanation !! thank you very much <3