 In algebra, expanding brackets means to remove the brackets. Brackets and parentheses are both two words that mean the exact same thing, so I'll be calling them brackets. In this video, we're going to discover how to expand single brackets. And then in another video, we'll look at expanding double brackets. Remember that in algebra, having two things next to each other means to multiply. So to expand brackets, we multiply everything on the inside by whatever is next to the bracket on the outside. So 2 multiplied by 3x gives us 6x and 2 multiplied by negative 4 gives us negative 8. Make sure you include the sign. Some of you may prefer to write the question out in a grid to make sure that you don't miss out on any parts. So the 3x and the negative 4 go here and whatever is outside the bracket goes here. And then we just multiply each part together and you get the answer of 6x minus 8. Be careful with multiplying negatives. Can you expand these brackets? Pause the video, give the question a go and click play when you're ready. Did you get negative 6a plus 15b? So negative 3 multiplied by 2a is negative 6a and negative 3 multiplied by negative 5b is positive 5b because negative times a negative is a positive. Still do the exact same thing when there are three terms inside the bracket. Pause the video and give these questions a go. How did you get on? So that's all there is to know about expanding single brackets. The opposite of expanding is called factorising which just means putting back into brackets. We'll have a look at this in a different video. We'll also look at expanding double brackets and even triple brackets in another video.