Gerry Lim's answer to June's Secondary 3 A Maths Singapore question.
done
{{ upvoteCount }} Upvotes
clear
{{ downvoteCount * -1 }} Downvotes
If they ask how many roots, it means the number of points of the curve that intersect y=0. Since f(x) is exactly divisible by (x+5) , you know that f(x) =0 when x = -5. So that's one root already
Date Posted:
2 years ago
360 Tutoring Program