1. Objective- To simplify problems involving square roots and variables.
Reals
Perfect Squares 1 4 9 16 25 36 49 64 81
100
Irrationals
Rationals

2. Where do perfect squares get their name?1 4 9 16 25 36 49 64 81
100

3. Find the area of the square below. Find the side of the square below.7 2
A = 16 un. 2 2
A = s
A = s 2 2 2
16 = s
A = 7 = 49 un.
S = 4

4. is an irrational number and we will never know its exact value.
However, = = 7
Square of Square Root Property 2
( ) = n
Simplify the following: 2
1) ( ) ) 2) 2 3)

5. Warning for tests and quizzes!!!
If you try to use a calculator to solve the
problem below, you won’t get the right answer. =
( )( ) =
The correct method gives... 2
= ( ) = 5

6. Review
Solve the following:
1) x = 100 2
2) y = 19 2
3) x = 43 2