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

3549 Views

See similar Maths 11 Plus tutors

Related Maths 11 Plus answers

All answers ▸

How many thirds are there in 9?


How many thirds are there in 9?


There are 45 pupils in a class, 1/9 travel to school by train, 2/5 travel to school by car, 2/9 take the bus. Find how many students walk


A sunflower is one hundred and fifty centimetres tall. How tall will it be if its height increases by ten per cent?


We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

MyTutor is part of the IXL family of brands:

© 2026 by IXL Learning