Grade 9's power point for their micro teaching.

2. WHAT IS A RADICAL?
A RADICAL EXPRESSION OR RADICAL IS A
TERM OR EXPRESSION THAT CONTAINS A
SQUARE ROOT
Addition
Addition and subtraction of radicals involve the same
concept in adding and
subtracting integers or whole numbers.

3. Parts of a radical expression

4. Addition
• -Simplify the radical
expressions by finding the root
of the radicand or factoring it
out
Simplify the terms.
-If there is no square root, use
prime factorization on the
numbers.

5. Prime factorization
The first few prime numbers are: 2, 3, 5, 7, 11, 13, and 17
...

6. Addition
• -Simplify the radical
expressions by finding the root
of the radicand or by factoring
it out.
-If there is no square root, use
prime factorization on the
numbers.

7. Addition
- Simplify the terms.
- -If the exponent is greater
than or equal to the index,
then it can be taken
outside the radicand.

8. subtraction
- Find the root of the radicand
or factor it out.
Do the same procedure in adding
radicals. The only thing to change is
the operation.

9. subtraction
--If the exponent is
greater than or equal
to the index, then it
can be taken outside
the radicand.
-simplify the terms.

10. REMEMBER!
We can only combine like radicals.
Don’t forget the index. The most common value of the
index (root) is 2. but it can also be 3 or more. (cube,
fourth root, etc)

11. Let’s try!

12. REMEMBER!
• We can only combine like radicals.
• Don’t forget the index. The most common value of the
index (root) is 2. but it can also be 3 or more. (cube, fourth
root, etc)