You are Here: Home >< Maths

# what are solutions & roots watch

1. I am working on a maths question and it asks:

how many solutions does 0=xx+2x+1 have"

this surely has two indistinct roots, does that mean it has one or two solutions?
2. (Original post by Rowanstruggling)
I am working on a maths question and it asks:

how many solutions does 0=xx+2x+1 have"

this surely has two indistinct roots, does that mean it has one or two solutions?
The quadratic has a repeated root, and equation has only one solution, x=-1
3. At MOST, a quadratic can have two distinct roots (if you are only seeking real roots).

This is the value of x when:

One way to check is using the discriminant and seeing if it is greater then zero, equal to zero or less than zero.
(Note the discriminant appears in the quadratic equation with the square root operation applied to it, which indicates the number of distinct real roots).

In this case though, we can factorise your given quadratic easily and see there is only one distinct root.

### Related university courses

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: November 1, 2017
Today on TSR

### He broke up with me because of long distance

Now I'm moving to his city

### University open days

Wed, 25 Jul '18
2. University of Buckingham
Wed, 25 Jul '18
3. Bournemouth University
Wed, 1 Aug '18
Poll
Useful resources

### 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

## Groups associated with this forum:

View associated groups

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