griff's answer to Damsieee's Secondary 3 A Maths Singapore question.
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Yeap u are on the right track! Doubt the qn is actually worth 7m (most of the time about 4m).
Alternative method to solve quadratic equations:
Complete the square - great for solving inequalities
Simplify and factorise - as u did
Alternative method to solve quadratic equations:
Complete the square - great for solving inequalities
Simplify and factorise - as u did
Date Posted:
2 years ago
Ty all sm for helping me in this 1 qns. I understand now. Tysm!! :D
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