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

(x+4)(x-3)

Answered by Jack W. Maths tutor

4424 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

What is the gradient of the curve 3x^3 + 7x at the point x=3?


Simplify, leaving your answer as a quadratic: (2x + 3)/(x+4) - (3x - 6) = 4


OCR, 2016, Higher Maths: Rationalise the denominator 1/(1+sqrt(3))


What is £23 increased by 4%?


We're here to help

contact us iconContact usWhatsapp logoMessage us on Whatsapptelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo
Cookie Preferences