T9 SAS2 Simplifying Rational Expressions

Simplifying Rational Expressions- Page 9

​Example of a rational expression:

Multiple Choice

Page 9 #2 First Box

Factor:

$$x^2+5x+6$$  

• $$\left(x+2\right)\left(x-3\right)$$  

• $$\left(x-2\right)\left(x+3\right)$$  

• $$\left(x+2\right)\left(x+3\right)$$  

• $$\left(x-3\right)\left(x-2\right)$$  

Multiple Choice

Page 9 #2 Second Box

Factor:

$$x^2-4$$  

• $$\left(x+2\right)\left(x-2\right)$$  

• $$\left(x+2\right)\left(x+2\right)$$  

• $$\left(x-2\right)\left(x-2\right)$$  

Simplifying Rational Expressions- Page 9

Look at the example on the right.

This is not in your packet.

WATCH THIS!

This is not in your packet.

​We will talk about excluded values a different day, but you should try to see where they come from.

Multiple Choice

Page 9 #3

What is the correct factored form? $$\frac{x^2+5x+6}{x^{2\ }-4}$$

• Factor:

  $$\frac{\left(x+2\right)\left(x+3\right)}{\left(x+2\right)\left(x-2\right)}$$

• Factor:

  $$\frac{\left(x+3\right)\left(x+2\right)}{\left(x-2\right)\left(x-2\right)}$$

• Factor:

  $$\frac{\left(x+2\right)\left(x-3\right)}{\left(x+2\right)\left(x-2\right)}$$

Multiple Choice

Page 9 #3

What cancels from the previous question?

• $$x+2$$

• $$x-2$$

• $$x+3$$

• $$x-3$$

Multiple Choice

Page 9 #3

What expression is equivalent to  $$\frac{x^2+5x+6}{x^2-4}$$  

• $$\frac{x+2}{x-2}$$

• $$\frac{x+3}{x+2}$$

• $$\frac{x+3}{x-2}$$

Open Agile Mind and complete the 3 drag and drop questions. There are in your packet on page 9 #3-4 and page 10 #5