Hey there! Sign in to join this conversationNew here? Join for free
 You are Here: Home >< Maths

# Quadratics and discriminant Watch

Announcements
1. Find the possible solutions of the quadratic equation x^2+(3-m)x+5 = m^2
where m is a constant, given that it has repeated roots.

I worked out the discriminant which is b^2-4ac=0
So (3-m)^2 -4(5) which gives me m^2-6m-11 =0
Not sure what to do from here.
Thanks!
2. (Original post by algebrax1)
Find the possible solutions of the quadratic equation x^2+(3-m)x+5 = m^2
where m is a constant, given that it has repeated roots.

I worked out the discriminant which is b^2-4ac=0
So (3-m)^2 -4(5) which gives me m^2-6m-11 =0
Not sure what to do from here.
Thanks!
The quadratic expression should be equal to 0.
3. (Original post by algebrax1)
Find the possible solutions of the quadratic equation x^2+(3-m)x+5 = m^2
where m is a constant, given that it has repeated roots.

I worked out the discriminant which is b^2-4ac=0
So (3-m)^2 -4(5) which gives me m^2-6m-11 =0
Not sure what to do from here.
Thanks!

Now try again.

Reply
Submit reply
TSR Support Team

We have a brilliant team of more than 60 Support Team members looking after discussions on The Student Room, helping to make it a fun, safe and useful place to hang out.

This forum is supported by:
Updated: September 25, 2016
Today on TSR

### Starting your personal statement?

This is how Oxbridge students do it.

### This compliment left me speechless...

Discussions on TSR

• Latest
• ## See more of what you like on The Student Room

You can personalise what you see on TSR. Tell us a little about yourself to get started.

• Poll
Useful resources

## Make your revision easier

### Maths Forum posting guidelines

Not sure where to post? Read the updated guidelines here

### How to use LaTex

Writing equations the easy way

### Study habits of A* students

Top tips from students who have already aced their exams

Can you help? Study help unanswered threads

## Groups associated with this forum:

View associated groups
Discussions on TSR

• Latest
• ## See more of what you like on The Student Room

You can personalise what you see on TSR. Tell us a little about yourself to get started.

• The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE

Reputation gems: You get these gems as you gain rep from other members for making good contributions and giving helpful advice.