Simplify fully (x^2 + 3x)/(4x + 12) ​

First, factorise both the top and the bottom expressions. What is the common factor for the top expression? (expect an answer of x). If you factorise out the x, what are you left with? (expect x(x+3))What is the common factor for the bottom expression? (Help them to realise that 4 is the common factor). What does that now give you for the denominator? (4(x+3)). What can you do now to simplify the expression? (Prompt the idea of dividing both numerator and denominator by (x+3)). So what is the fully simplified expression? x/4

Answered by Martha P. Maths tutor

2933 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

A cylinder has dimensions: diameter = 4x+2 and height = 4. Work out the volume of this cylinder. Give your answer in terms of x


Solve the simultaneous equations 5x + y = 21, and x - 3y = 9.


Solve 10x - 7 = 4x + 5


What is proof and how does it work?


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