MYTUTOR SUBJECT ANSWERS

51 views

What is the method for factorising the expression 'x^2 + 3x + 2'?

1. First look at the constant coefficient, which in this case is 2. You need two numbers which will multiply together to make this number. The only pairs of numbers that will make 2, are (1 and 2) or (-1 and -2).

2. Secondly, the coefficient of the x term needs to be observed, which is 3 here. This must be made by adding together two of these numbers. Looking at the pairs of numbers which we are already limited to, we can see that 1 and 2 work, as they sum to 3.

3. This allows the expression to be factorised into the following brackets:

(x+1)(x+2)

Will W. GCSE Maths tutor, A Level Maths tutor, A Level Further Mathem...

1 month ago

Answered by Will, a GCSE Maths tutor with MyTutor

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

327 SUBJECT SPECIALISTS

£18 /hr

Ben A.

Degree: Medicine (Bachelors) - University College London University

Subjects offered: Maths, Physics+ 6 more

Maths
Physics
Chemistry
Biology
.UKCAT.
.BMAT (BioMedical Admissions)
-Personal Statements-
-Medical School Preparation-

“Hello,I am a first year medical student at University College London, When I was in sixth form, I helped tutor the younger years and I always enjoyed it, so I decided to keep it on in my university years.My subjects are the three m...”

£18 /hr

Matthew M.

Degree: MSci Computer Science (Masters) - Lancaster University

Subjects offered: Maths, Economics+ 2 more

Maths
Economics
Business Studies
-Personal Statements-

“About Matt: I'm Matt and I am a computer science student at Lancaster University. I have often been described as being friendly and hardworking by my friends, family and work colleagues. Prior to University I worked in the industry as...”

£18 /hr

Andrew B.

Degree: Economics L100 (Bachelors) - Exeter University

Subjects offered: Maths, Economics

Maths
Economics

“About Me: I am an economics student at Exeter University, I have a real passion for economics and how applicable it is to the world around us, and I hope my enthusiasm for it comes across in my tutorials and helps to inspire you! I'm...”

About the author

£18 /hr

Will W.

Degree: Mathematics (Bachelors) - Durham University

Subjects offered: Maths, Physics+ 2 more

Maths
Physics
Further Mathematics
.STEP.

“About Me: I am a Maths and Physics student at Durham University, who has always enjoyed understanding complex concepts in these subjects. I also have a passion for sharing this enjoyment. At my previous school, I ran a Maths Club. Thi...”

You may also like...

Posts by Will

How do you calculate the derivative of cos inverse x?

How do you integrate (sinx)^2?

How much work must be done on a 4.0kg frictionless trolley, to accelerate it from rest to a velocity of 5.0m/s?

Show that substituting y = xv, where v is a function of x, in the differential equation "xy(dy/dx) + y^2 − 2x^2 = 0" (with x is not equal to 0) leads to the differential equation "xv(dv/dx) + 2v^2 − 2 = 0"

Other GCSE Maths questions

Simplify: 2x + 6y + 2y - x

Express 4/(2-√2) in the form a+b√2 and write down the values of a and b.

How do you substitute a number into an algebraic expression?

What are the differences between arithmetic and geometric sequences?

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