Squares and Square Roots and Irrational Numbers

If x²= 100, then

• x = 10 and x = -10

• x = -10

• x = 10

• x = 50

7²

• 14

• 49

• 9

• 72

3²

• 6

• 9

• 5

4²

• 16

• 6

• 8

5²

• 7

• 10

• 25

6²

• 36

• 12

• 8

8²

• 16

• 82

• 64

A decimal that DOES NOT END and has NO PATTERN is ________

• Rational

• Irrational

Irrational numbers

• never end and never repeat.

• can be positive or negative.

• are square roots of perfect squares.

The square root of a perfect square is

• irrational.

• rational.