Expand and simplify the following equation 5a(4b - 3) - 2a(6 + b)

  • Google+ icon
  • LinkedIn icon

In order to simplify this equation, first we need to expand the two brackets.

To expand 5a(4b - 3) we multiply 5a with each term inside the brackets. Therefore, we get 5a * 4b - 5a * 3 = 20ab - 15a

Doing the same thing for 2a(6 + b), we get 12a + 2ab

Now to simplify the equation we put together the two new terms:

20ab - 15a - (12a + 2ab)  = 20ab - 15a - 12a - 2ab

Grouping up the first and the last term, we get the final expression: 

18ab - 27a

Sebastian-Stefan S. GCSE Computing tutor, GCSE Physics tutor, GCSE Ma...

About the author

is an online GCSE Maths tutor who has applied to tutor with MyTutor studying at Bristol University

Still stuck? Get one-to-one help from a personally interviewed subject specialist.

95% of our customers rate us

Browse tutors

We use cookies to improve your site experience. By continuing to use this website, we'll assume that you're OK with this. Dismiss