Ask Singapore Homework?

Upload a photo of a Singapore homework and someone will email you the solution for free.



Question

secondary 4 | A Maths
One Answer Below

Anyone can contribute an answer, even non-tutors.

Answer This Question
Kathy
Kathy

secondary 4 chevron_right A Maths chevron_right Singapore

Thank you

Date Posted: 5 years ago
Views: 215

See 1 Answer

done {{ upvoteCount }} Upvotes
clear {{ downvoteCount * -1 }} Downvotes
Benjamin Chung
Benjamin Chung's answer
3 answers (Tutor Details)
1st
The way to solve these kind of questions is to first bring all the terms to one side of the equation.

Depending on what the question is looking for, you equate the discriminant (b^2 - 4ac) to be either less, equal or more than zero. Thereafter, solve that equation to obtain the range of values!

Hope this helps! If it is unclear, do feel free to clarify further :)