Expand the brackets (3x^2 + 6x + 7)(x - 3)

To help the student understand how to expand the brackets I would start by splitting the equation to:3x2(x - 3) + 6x(x - 3) + 7(x - 3)I then would ask the student to expand these brackets to:3x3 - 9x2 + 6x2 - 18x + 7x - 21Then I would ask the student to collect the like terms and simplify the equation to:3x3 - 3x2 - 11x - 21

JD
Answered by Jasmine D. Maths tutor

3139 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

Expand (2x + 3)(x - 1)


How do you solve simultaneous equations.


A man stands 9 metres from the base of a tree. He knows the distance from where he is standing and the top of the tree is 15 metres. How tall is the tree?


A ten-sided die with sides numbered 1-10 is thrown. What is the probability of throwing a 1?


We're here to help

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

© MyTutorWeb Ltd 2013–2025

Terms & Conditions|Privacy Policy
Cookie Preferences