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secondary 4 | A Maths
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Kathy
Kathy

secondary 4 chevron_right A Maths chevron_right Singapore

thanks for helping

Date Posted: 5 years ago
Views: 204

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Lester Tan
Lester Tan's answer
3 answers (Tutor Details)
1st
The trick to get rid of the modulus is to consider both positive and negative values.

E.g. |X|=7, X could take on the values of either 7 or -7 because the modulus will eventually make it positive either ways.

Hope this helps!