Fully simplify this equation; 3x^3 - x(3x+36) = 0

The first step is to multiply out the bracket

3x3 - 3x- 36x = 0

Then remove the common factor 3x

3x(x2 - x - 12) = 0

Then factorise the bracket, by looking for two numbers which multiply to give -12, and add to give -1

3x(x - 4)(x + 3) = 0

RO
Answered by Rachel O. Maths tutor

3015 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

Solve 9x-4=7(x+2)


Solve the simultaneous equations algebraically.


2x + 7 = 13 - 2x. What is the value of x?


There are 30 balls in the bag, 10 of which are blue. Adam takes 2 balls out of the bag without a replacement and calculated that there is a probability of 0.2 of both balls being blue. What percentage error did he make compared to the true probability?


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