MYTUTOR SUBJECT ANSWERS

53 views

Factorise x^2 + 7x + 10

'Factorise' essentially means put into a simpler form, in this case with two sets of linear equations which would multiply out to give the quadratic equation shown above.

What we are looking for to begin with is two numbers that add together to give 7, and multiply to give 10.We reach the numbers 5 and 2 in this example. We then simply re-arrange the quadratic into the form ' (x+a)(x+b)', where a and b are the two numbers we have found that multiply and add respectively to give 10 and 7.

Therefore, factorised, x^2+7x+10 is (x+5)(x+2)

David J. A Level Maths tutor, 13 Plus  Maths tutor, GCSE Maths tutor,...

2 months ago

Answered by David, a GCSE Maths tutor with MyTutor

Still stuck? Get one-to-one help from a personally interviewed subject specialist

327 SUBJECT SPECIALISTS

£18 /hr

James J.

Degree: Medicine (Bachelors) - Birmingham University

Subjects offered: Maths, Chemistry+ 2 more

Maths
Chemistry
Biology
-Medical School Preparation-

“I am a 2nd year medical student at the University of Birmingham. Having studied the sciences and maths all the way up to A-level, I am very experienced at being confused by different concepts. I know exactly how it feels to look at a ...”

£18 /hr

James B.

Degree: Mathematics and Economics (Bachelors) - Nottingham University

Subjects offered: Maths, Economics

Maths
Economics

“About me : I am currently studying Maths and Economics at Nottingham University, about to go into my second year. Over the summer I have been in America teaching and counselling kids at a summer camp and I hope to bring what I have le...”

£20 /hr

Oliver W.

Degree: Natural Sciences (Bachelors) - Cambridge University

Subjects offered: Maths, Extended Project Qualification+ 4 more

Maths
Extended Project Qualification
Economics
Chemistry
Biology
-Personal Statements-

“I am third year student at the University of Cambridge studying Natural Sciences. I specialise in Neurobiology. However, I have a lot of experience in othersciences and maths, at GCSE and IB level. I studied for 5 years at Sevenoaks Sc...”

About the author

£18 /hr

David J.

Degree: Psychology (Bachelors) - Bristol University

Subjects offered: Maths, Economics+ 1 more

Maths
Economics
Drama

“I'm a first year student at Bristol University studying Psychology! I am always happy to help my friends and fellow students out and love being helped out by others too, so I would really like to help out more people using my experien...”

MyTutor guarantee

You may also like...

Posts by David

Explain the difference between short term growth and long term growth

Factorise x^2 + 7x + 10

Other GCSE Maths questions

How to solve the maths GCSE question about Hannah's sweets that went viral

ABC is a right angled triangle. D is the point on AB such that AD = 3DB. AC = 2DB and angle A = 90 degrees. Show that sinC = k/√20 where k is an integer. Find the value of k

How do I find the equation of a straight line?

Rearrange aq - ac = d

View GCSE Maths tutors

Cookies:

We use cookies to improve our service. By continuing to use this website, we'll assume that you're OK with this. Dismiss

mtw:mercury1:status:ok