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secondary 3 | A Maths
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June
June

secondary 3 chevron_right A Maths chevron_right Singapore

Pls help

Date Posted: 1 year ago
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Gerry Lim
Gerry Lim's answer
33 answers (Tutor Details)
1st
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