How do you expand brackets?

Let's have a look at a pair of brackets: (a+b)(c+d)To expand these brackets each value in one bracket must be multiplied by all values in the other bracket separately then added together. So we have: ac+ad+bc+bd *Using this formula we can look at more specific examples: (x+3)(2x+1)Now let a=x b=3 c=2x d=1 then substituting into * we have 2x2+x+6x+3 Which we must simplify to 2x2+7x+3

Answered by Phoebe B. Maths tutor

2652 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

How do you multiply an "number" with powers for example a^3 * a^6


How do you factorise?


Why do we use simultaneous equations?


Factorise 3x^2+15x


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 2013–2024

Terms & Conditions|Privacy Policy
Cookie Preferences