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secondary 2 | Maths
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Mercyn
Mercyn

secondary 2 chevron_right Maths chevron_right Singapore

I don't understand why I can't use trial and error.

Date Posted: 4 years ago
Views: 475

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Eric Nicholas K
Eric Nicholas K's answer
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The question wants you to use mathematical working to solve the equation so trial and error would not be an appropriate approach here considering that a thematic approach to this question is available.