Intro to Radicals

What is the square root of 100?

• 10

• 200

• 50

• 1000

√64

• 3

• 8

• 7

• 6

√1

• 1

• 2

• 10

• 100

Square roots are the opposite of ____________.

• Cube Roots

• Squaring

• Multiplication

• Absolute Value

Is the result rational or irrational? Explain.

• Rational; The sum of two rationals is always rational.

• Irrational; The sum of a rational and an irrational is always irrational.

• Rational; The product of two rationals is always rational.

• Irrational; The product of a nonzero rational and an irrational is always irrational.

√10

• Rational

• Irrational

determine which is square root of 144

• 11

• 10

• 12

• 14

Find the square root.
√100

• 50

• 25

• 10

• 5

Simplify:
3√16

• 12

• 48

• √12

• 3√4

√45

• 3√5

• 5√3

• 9√5

• 5√9