Ask Singapore Homework?
Upload a photo of a Singapore homework and someone will email you the solution for free.
Question
secondary 3 | A Maths
3 Answers Below
Anyone can contribute an answer, even non-tutors.
logarithm
Date Posted: 4 years ago
Views: 285
See 3 Answers
done
{{ upvoteCount }} Upvotes
clear
{{ downvoteCount * -1 }} Downvotes
Hope this helps
Date Posted:
4 years ago
done
{{ upvoteCount }} Upvotes
clear
{{ downvoteCount * -1 }} Downvotes
Alternative idea is to recognise that a perfect square will only have equal roots.
The only way when x2 - 4x + c = 0 has equal roots is when c = 4. We can see this by using the discriminant (as per what the other tutors wrote) or using completing the square.
There you have it, p = 16.
The only way when x2 - 4x + c = 0 has equal roots is when c = 4. We can see this by using the discriminant (as per what the other tutors wrote) or using completing the square.
There you have it, p = 16.
Date Posted:
4 years ago
360 Tutoring Program