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secondary 2 | Maths
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Ashley Lim
Ashley Lim

secondary 2 chevron_right Maths

can someone tell me how can we know like when we should put the “-“ sign first or the”+” sign first for the factorize part?

Date Posted: 7 years ago
Views: 490
Heng Xian Yao
Heng Xian Yao
7 years ago
It doesnt matter, but usually you put the bracket ith + first.
Ashley Lim
Ashley Lim
7 years ago
i feel like it matters because like it effect the answer doh
Heng Xian Yao
Heng Xian Yao
7 years ago
You try change the order it doesnt matter haha
Heng Xian Yao
Heng Xian Yao
7 years ago
you still ill get the same answers

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Richard Sng
Richard Sng's answer
3 answers (A Helpful Person)
1st
To get +6y, you'll need -2y + 6y. Hence using the cross method, it'll be (8y-1)(2y+1) instead of (8y+1)(2y-1).