Factorise X^2 + 1X -12

Because the highest power of X is 2, this is a Quadratic Equation

When factorised, these look like 

       (x + a)(x + b)                 where a & b are constants

To factorise this, we need to find 2 numbers which add together to make the coefficient (number in front of) X and multiply to make the number at the end.

So we need two numbers which add together to make +1 and multiply to make -12       +4 & -3

a & b in the form above are replace by these to numbers, so the answer is


Jack W. A Level Chemistry tutor, A Level Biology tutor, GCSE Maths tu...

2 years ago

Answered by Jack, a GCSE Maths tutor with MyTutor

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


£22 /hr

Sam A.

Degree: Molecular Biotechnology (Masters) - Birmingham University

Subjects offered:Maths, Human Biology+ 2 more

Human Biology

“I am a Masters student in Molecular Biotechnology and I have a passion for life sciences, with a particular in its industrial applications! I have a lot of experience helping students to understand science, from secondary school to un...”

£18 /hr

Reubin B.

Degree: Business Economics (Bachelors) - Exeter University

Subjects offered:Maths, Graphic Design+ 1 more

Graphic Design

“ABOUT ME I am currently a student at the University of Exeter studying Business Economics. I have a keen interest in all aspects of economics with the passion to guide you through your course, and the hope to inspire the same enthusia...”

MyTutor guarantee

£22 /hr

Dylan S.

Degree: Materials Science (Masters) - Oxford, Trinity College University

Subjects offered:Maths


“20 years old. 2nd year Oxford Materials Science undergrad. I strive to make maths less abstract and more understandable.”

MyTutor guarantee

About the author

Jack W. A Level Chemistry tutor, A Level Biology tutor, GCSE Maths tu...

Jack W.

Currently unavailable: for new students

Degree: Medicine (Bachelors) - Newcastle University

Subjects offered:Maths, Music+ 2 more


“Experienced mentor studying at a Russell-group university, here to maximise your potential.”

You may also like...

Posts by Jack

Describe the process of evolution (6 Marks)

Factorise X^2 + 1X -12

Other GCSE Maths questions

Why is anything to the power 0 equal 1?

If I have £730 in my bank account which has 2.5% compound interest per year, how much more money will be in there after two years?

Find the coordinates of the minimum point of the curve y=x^2+6x+5.

How do I know whether to add or minus in Pythagoras's theorem?

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