Lesson 2: The Laws of Indices

Lesson
Materials

Objective

At the end of the lesson, students should be able to;

  • Know and apply the laws of indices.

 

Law 1: When you multiply powers of the same base, you add the indices,

For example:

 

form3unit8-lesson2-inner1

Law 2: When dividing index expressions of the same base, the powers may be subtracted.

For example:

form3unit8-lesson2-inner2

Law 3: A power raised to a power means the two indices can be multiplied.

form3unit8-lesson2-inner3

form3unit8-lesson2-inner4

Law 4: Anything raised to the power zero equals one.

form3unit8-lesson2-inner5

Example 1

Simplify the following.

form3unit8-lesson2-example1

 

Unit 8 Lesson 2: Exercise 1

Simplify the following expressions to a single power where possible.

 form3unit8-lesson2-exercise1

NOTE: Please check for Answers in the (Additional) Material section at the top

 

Unit 8 Lesson 2: Exercise 2

Simplify the following expressions to a single power where possible.

form3unit8-lesson2-exercise2

NOTE: Please check for Answers in the (Additional) Material section at the top

 

Unit 8 Lesson 2: Exercise 3

Now Try These

form3unit8-lesson2-exercise3

NOTE: Please check for Answers in the (Additional) Material section at the top

 

Unit 8 Lesson 2: Exercise 4

Now Try These

form3unit8-lesson2-exercise4

form3unit8-lesson2-exercise41

NOTE: Please check for Answers in the (Additional) Material section at the top

WORKSHEET

Indices Rules – Basics – 1

Indices Rules – Basics – 2

Indices Rules – Basics – 3

 

These are the answers to Form 3 unit 8. Lesson 2: Exercise 1

 


These are the answers to Form 3 unit 8. Lesson 2: Exercise 2

 


These are the answers to Form 3 unit 8. Lesson 2: Exercise 3

 


These are the answers to Form 3 unit 8. Lesson 2: Exercise 4

 

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