Erfana Beevee Binte Hassan Shariff's answer to chloe'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
We compare coeff of x^2 and x^3 terms first so that we can find a and b first. Then we let x=1 to find c. If we let x=1 first, there will be too many unknowns in 1 equation. Makes it tedious to solve using multiple simultaneous equations.