Neo Yu Shan's answer to Skr's Secondary 3 A Maths Singapore question.

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Neo Yu Shan
Neo Yu Shan's answer
276 answers (Tutor Details)
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hope this helps
Eric Nicholas K
Eric Nicholas K
5 years ago
The term directly below the word 'required' in red ink should be 12a2bcx3, not 3a2bcx3.

With this change, your 'd' should be 96 + (-216) = -120.