Eliminate The Repeats

Simplify : 

 $\frac{x-3}{x-3}$   

• 1

• x-3

• x+3

• 0

Simplify: 

 $\frac{x^2-9}{x^2-9}$  

• 0

• 1

• x-9

• x+9

 $Simplify\ \frac{\left(x+5\right)\left(x-2\right)\left(x-9\right)}{\left(x-2\right)\left(x+5\right)}$  

• 1

• 0

• x-9

• x+9

 $Simplify\ \frac{\left(x+4\right)\left(x-3\right)}{\left(x-3\right)\left(x+4\right)\left(x-7\right)}$  

• 1

•  x+7

•  $\frac{1}{x-7}$  

• x-7

•  $\frac{0}{x-7}$  

 $Simplify\ \frac{\left(x+9\right)\left(x-3\right)}{\left(x-3\right)\left(x+4\right)\left(x-7\right)}$  

• x-3

•  x+9

•  $\frac{x+9}{\left(x-7\right)\left(x+4\right)}$  

• x-7

•  $\frac{\left(x+4\right)\left(x-7\right)}{x+9}$  

Simplify: 

 $\frac{x-7}{x+7}$   

• 1

• x-3

• x+3

•  $\frac{x-7}{x+7}$   
  

Simplify: 

 $\frac{x^2-9}{x+3}$  

• 0

• 1

• x-3

• x+3

Simplify: 

 $\frac{x^2-9}{x^2+9}$  

•  $\frac{x^2-9}{x^2+9}$ 

• 1

• x-9

• x+9

What is any number divided by zero ?

• 1

• 0

• Itself , it stays the same

• Undefined, its impossible

What value for x, would cause the following to become undefined ?

 $\frac{4}{x+3}$  

• 3

• -3

• 4

• -4