expand (2x+4)(x+2)

For this question you can use a method called the foil method. The F stands for first therefore you times the 2 variables that are first in each bracket. 2x times x which gives you 2x^2. The O stands for outside, this means that you times the two variables on the outside, in this case 2x and 2 which will give you 4x. I stand for inside therefore you are timesing the two inner variables, so 4 and x which gives you 4x. Finally L stands for last which are the last variables in the each bracket. In this case 4 and 2 which gives you 8. now we have 2x^2+4x+4x+8 we then simplify this and we get 2x^2+8x+8

AF
Answered by Aiyshah F. Maths tutor

5119 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

Complete the square on the equation (x^2)-4x-3


A car costs £5,899.99, not including VAT. If the VAT rate is 20% how much does the car cost in total?


Sean drives from Manchester to Gretna Green. He drives at an average speed of 50 mph for the first three hours. He then breaks and drives the final 150 miles at 30 mph. Sean thinks his average speed is 40 mph ,is he correct?


What term comes next in the sequence: 5, 8, 11, 14


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