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

done {{ upvoteCount }} Upvotes
clear {{ downvoteCount * -1 }} Downvotes
Erfana Beevee Binte Hassan Shariff
Erfana Beevee Binte Hassan Shariff's answer
275 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.