Index and Surd Laws
Scientific Notation

Index and Surd Laws

​Index laws

• Multiplying indices using unknowns
• Dividing indices using unknowns
• Power of a power using unknowns
• The zero power
• Expanding quotients
• What are negative indices?
• Simplifying problems with negative indices
• ​Rational indices​

​Application of indices

• Scientific notation
• Significant figures​

Surd laws

• Simplifying surds
• Operating with surds

There are situations where really small and really big numbers need to be described. For example, there are about 75,000,000,000,000 cells in the human body. Numbers with so many digits can be hard to comprehend or operate with. We can use scientific notation to write these numbers in a way that is easier to understand.