Index and Surd Laws
Simplifying Problems With Negative Indices

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

A variable raised to a negative index is equal to 1 divided by the same variable raised to a positive index.