Veggie's answer to ok's Junior College 1 H2 Maths Singapore question.

done {{ upvoteCount }} Upvotes
clear {{ downvoteCount * -1 }} Downvotes
Veggie
Veggie's answer
5 answers (A Helpful Person)
1st
I see that u dont want to use graphical method but that's actually just doing yourself a disfavour, algebraic method is only better when they give polynomial. :)