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secondary 4 | A Maths
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Yesha Vaishnav
Yesha Vaishnav

secondary 4 chevron_right A Maths chevron_right Singapore

everything

Date Posted: 3 years ago
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Chua Yi Cheng
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12 answers (Tutor Details)
1st
use the discriminant method, real roots means b^2 - 4ac cannot be less than 0! i hope you understand !