MYTUTOR SUBJECT ANSWERS

212 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,...

5 months ago

Answered by David, a GCSE Maths tutor with MyTutor


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

516 SUBJECT SPECIALISTS

George G. GCSE Chemistry tutor, GCSE Maths tutor
£18 /hr

George G.

Degree: Materials Science and Engineering (Bachelors) - Imperial College London University

Subjects offered:Maths, Physics+ 1 more

Maths
Physics
Chemistry

“Hi I'm George, and I'm a great tutor because: 1) I’m friendly, speak clearly and enjoy tutoring 2) I help my students develop positive techniques and habits ”

£18 /hr

Oluwatobi O.

Degree: Molecular & Cellular Biochemistry (Masters) - Oxford, Exeter College University

Subjects offered:Maths, Physics+ 4 more

Maths
Physics
Chemistry
Biology
-Personal Statements-
-Oxbridge Preparation-

“Oxford University Biochemist. I'm very enthusiastic about science and will ensure maximisation of potential with an Oxbridge style tutorial learning technique.”

MyTutor guarantee

£18 /hr

Elizabeth P.

Degree: Geophysics (Bachelors) - Durham University

Subjects offered:Maths, -Personal Statements-

Maths
-Personal Statements-

“Hey there! My name is Libby and I’m currently in my final year studying Geophysics at Durham university. I love to get other people as excited about maths and science as I am and have done so by tutoring at school, being involved outr...”

MyTutor guarantee

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

Expand and simplify (3x+2) (x-5)

Rearranging equations

How do i factorise 20 + 10x?

What is the Pythagoras Equation?

View GCSE Maths tutors

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

mtw:mercury1:status:ok