Turn on thread page Beta
 You are Here: Home >< Maths

# Help with math question?( GCSE Quadratics with the Formula) watch

1. The product of two consectuative numbers is 1806.Let n be the smaller number.
a) Show that n^2 + n -1806 = 0

b) Find the value of n.

I dont understand how I am supposed to find this? Could someone please explain. Dont tell me the answer please I just need to know how to do it.
2. write out two consecutive numbers as algebra and see what hapens when you expand it
3. If n is the smaller number then the next number is (n+1), make an equation from the statement you're given. From there you should be able to see where you get the equation you are given.

For part b, you could use the quadratic equation, if your allowed a calculator, this is the easiest way to solve it. I recommend learning it will make your mathematics a lot more easier.
4. (Original post by Fordrin)
If n is the smaller number then the next number is (n+1), make an equation from the statement you're given. From there you should be able to see where you get the equation you are given.

For part b, you could use the quadratic equation, if your allowed a calculator, this is the easiest way to solve it. I recommend learning it will make your mathematics a lot more easier.
I still dont understnad the first part...

I kind of just messed around witht eh calculator and got the answer for part b. Would I still get 2 marks out of 2 if I just put the answer or do I still have to put the working out?
5. (Original post by hannah.xo)
The product of two consectuative numbers is 1806.Let n be the smaller number.
a) Show that n^2 + n -1806 = 0

b) Find the value of n.

I dont understand how I am supposed to find this? Could someone please explain. Dont tell me the answer please I just need to know how to do it.
You have two consecutive numbers, and . We know that from the info, so you can rearrange this to show the equality in part (a). Then finding the value is just solving the quadratic in (a)
6. (Original post by hannah.xo)
I still dont understnad the first part...

I kind of just messed around witht eh calculator and got the answer for part b. Would I still get 2 marks out of 2 if I just put the answer or do I still have to put the working out?
Just right down what u put in the calculator

If you think about it consecutive is just adding 1 more. So adding 1 more to n is (n+1), I think someone else may have explained it better than me.
7. (Original post by hannah.xo)
I still dont understnad the first part...

I kind of just messed around witht eh calculator and got the answer for part b. Would I still get 2 marks out of 2 if I just put the answer or do I still have to put the working out?
you would probably get no marks for trial and error.
8. (Original post by RDKGames)
You have two consecutive numbers, and . We know that from the info, so you can rearrange this to show the equality in part (a). Then finding the value is just solving the quadratic in (a)
Oh that makes sense now, Thank you

Turn on thread page Beta

### 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 5, 2017
The home of Results and Clearing

### 1,361

people online now

### 1,567,000

students helped last year
Today on TSR

### IT'S TODAY!

A-level results chat here

### University open days

1. London Metropolitan University
Sat, 18 Aug '18
2. Edge Hill University
Sat, 18 Aug '18
3. Bournemouth University
Clearing Open Day Undergraduate
Sat, 18 Aug '18
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

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