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

3696 Views

See similar Maths 11 Plus tutors

Related Maths 11 Plus answers

All answers ▸

Expand and simplify the following (x+4)(2x-3)=0


There are 13 apples in a crate of apples. Mark orders six boxes of apples, how many apples did he order?


Write 120 as a product of its prime factors.


Forty-seven thousand, nine hundred and eighty-three people went to a football match. What is this number rounded to the nearest thousand?


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