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Radicals. Objective: To review working with radical expressions. Perfect Squares. 64. 225. 1. 81. 256. 4. 100. 289. 9. 121. 16. 324. 144. 25. 400. 169. 36. 196. 49. 625. Simplify. = 2. = 4. = 5. This is a piece of cake!. = 10. = 12.

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#### Presentation Transcript

Objective: To review working with radical expressions.

### Perfect Squares

64

225

1

81

256

4

100

289

9

121

16

324

144

25

400

169

36

196

49

625

Simplify

= 2

= 4

= 5

This is a piece of cake!

= 10

= 12

Perfect Square Factor * Other Factor

Simplify

=

=

=

=

=

=

=

=

=

=

Perfect Square Factor * Other Factor

Simplify

=

=

=

=

=

=

=

=

=

=

### Warm up

• Simplify:

• 1.

• 2.

• 3.

Objective: To simplifying products and quotients of radicals.

*

To multiply radicals: multiply the coefficients and then multiply the radicands and then simplify the remaining radicals.

Multiply and then simplify

To divide radicals: divide the coefficients, divide the radicands if possible, and rationalize the denominator so that no radical remains in the denominator

This cannot be divided which leaves the radical in the denominator. We do not leave radicals in the denominator. So we need to rationalize by multiplying the fraction by something so we can eliminate the radical in the denominator.

42 cannot be simplified, so we are finished.

This can be divided which leaves the radical in the denominator. We do not leave radicals in the denominator. So we need to rationalize by multiplying the fraction by something so we can eliminate the radical in the denominator.

This cannot be divided which leaves the radical in the denominator. We do not leave radicals in the denominator. So we need to rationalize by multiplying the fraction by something so we can eliminate the radical in the denominator.

Reduce the fraction.

Simplify

= X

= Y3

= P2X3Y

= 2X2Y

= 5C4D10

Simplify

=

=

=

=

=

=

=

=

### Warm up

• Simplify

• 1.

• 2.

• 3.

Objective: To simplify sums & differences of radicals.

+