Factorise x^2 −x−12

To factorise you need to look at common factors. And it needs to be put into the expression (x+/- y)(x+/- v)For X2-X-12, you need two numbers that times to make -12 and add to make -1-1X12, -12X1, -6X2, -2X6, -4X3, -3X4Out of the options -4 and 3 add to make -1Therefore, (x-4)(x+3) is the factorisation

LP
Answered by Lauryn P. Maths tutor

2790 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

How do you go about rearranging equations where the required subject appears on both sides? Such as making x the subject of 7x + a = 3x + b.


factorise fully: 10pq +15pqr


Make n the subject of the formula: m = 5n - 21


The area of square ABCD is 10 cm^2 . Show that x^2 + 6x = 1 (requires diagram which I will draw on the whiteboard).


We're here to help

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

© MyTutorWeb Ltd 2013–2025

Terms & Conditions|Privacy Policy
Cookie Preferences