Factorise the following expression: x^2+12x-45

x^2+12x-45

x^2+15x-3x-45 (15x - 3x= 12x and 15 x -3=-45)

x(x+15)-3(x+15)

(x-3)(x+15) 

AH
Answered by Aisha H. Maths tutor

2984 Views

See similar Maths 11 Plus tutors

Related Maths 11 Plus answers

All answers ▸

How do I do work out the area of a rectangle?


Why do we use algebra?


The cost of 5 calculators is £35. Work out the cost of 8 of these calculators.


There are 8 pink frogs in a pond, 25 blue frogs, 12 red frogs and 5 orange frogs. What percentage are pink?


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