Erfana Beevee Binte Hassan Shariff's answer to Jy's Secondary 3 A Maths Singapore question.

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Erfana Beevee Binte Hassan Shariff
Erfana Beevee Binte Hassan Shariff's answer
241 answers (Tutor Details)
1st
Since only coeff of x and x^2 are required, we use binomial expansion till x^2. Equate them and solve simultaneously.