Algebra
FOIL Expansion

Algebra

Check For Understanding

• Check for understanding

​​ Index laws

• Multiplying indices
• Dividing indices
• Power of a power
• The zero power
• Expanding quotients
• What are negative indices
• Simplifying with negative indices
• Rational indices

Surds

• Simplifying surds
• Operating with surds

Expanding brackets

• Collecting like terms
• The distributive law
• FOIL expansion
• Special situations
• Further expansion​

When expanding two brackets with each other, each term in the first bracket must multiply each term in the second bracket. If we have a special situation of having two terms in each set of brackets, then the acronym FOIL can be used to assist with expanding.