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

3425 Views

See similar Maths 11 Plus tutors

Related Maths 11 Plus answers

All answers ▸

Multiply 1/4 by 1/8


I want to pave my patio, which has dimensions of 6m by 8m. I'm going to pave it with stones that have dimensions of 50cm by 50cm. Each tile costs £1.50. How much will paving my patio cost me?


Here is a list of numbers, ' 1, 3, 9, 24, 30'. Which number is i) prime ii) a square number and iii) a multiple of 4


Mr. A divided our cake so I got 2/5th of it. If remaining cake was divided equally among 5 more friends so each got 150g, what was the weight of full cake?


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:

© 2025 by IXL Learning