Expanding Double Brackets

This video tutorial explains how to expand double and triple brackets in algebra. It begins with a review of single brackets and introduces two methods for expanding double brackets: the arc method and the grid method. The tutorial emphasizes the importance of simplifying terms and provides practice problems for viewers. It concludes with a demonstration of expanding triple brackets using the same principles as double brackets.

What is the first step in expanding double brackets?

• Add the terms in the brackets

• Divide the terms in the brackets

• Multiply each term in the first bracket by each term in the second bracket

• Subtract the terms in the brackets

Which method involves drawing arcs to link terms when expanding double brackets?

• FOIL method

• Arc method

• Grid method

• Column method

In the grid method, what is the result of multiplying x by -5?

• 5x

• -x

• 5

• -5x

What is the next step after expanding the first two brackets in a triple bracket expression?

• Add the terms together

• Multiply the result by the third bracket

• Subtract the third bracket

• Divide the result by the third bracket

What is the key reminder when expanding brackets?

• Always add the terms

• Divide the terms

• Subtract the terms

• Multiply everything in the second bracket by everything in the first bracket