Rational Expressions with Exponents

What does it mean to find one's?

• Same number in the numerator and denominator

• When you see the number one in a problem

• When you have 1 as the coefficient

What are the steps to solving this type of question: $\frac{4b^3}{2b}$  

• Expand, Rearrange and Multiply

• Expand only variables, Find One's and Multiply 

• Expand only numbers, Find One's and Multiply 

• Expand numbers and variables, Find One's, and Multiply

A variable is a

Solve: $3x^2\cdot2x^5$  

•  $5x$  

•  $6x^7$  

•  $5x^7$  

•  $6x$  

What is the best way to 

Expand:  $\frac{4b^3}{2b}$  

•  $\frac{4\cdot b\cdot b}{2\cdot b}$  

•  $\frac{2\cdot2\cdot b\cdot b\cdot b}{2\cdot b}$  

•  $\frac{4\cdot4\cdot4\cdot b\cdot b\cdot b}{2\cdot b}$  

•  $\frac{4\cdot3\cdot b}{2\cdot b}$  

Solve:  $\frac{4b^3}{2b}$  

•  $2b^2$  

•  $\frac{4b^2}{2}$  

•  $2$  

•  $\frac{12}{2}$  

I can expand  $-n$  as...

•  $-n$  

•  $-1\cdot n$  

•  $1\cdot n$  

•  $n-1$  

Simplify:  $\frac{5m}{-n}\cdot\frac{n^2}{5m}$  

• 1

• -2

• -n

• -1

• n

Simplify:  $\frac{2d}{5}\cdot\frac{10}{cd}$ 

•  $\frac{20d}{5cd}$  

•  $\frac{20}{5c}$  

•  $\frac{4}{c}$  

• 4

How do you fully expand  $10f^3$  ? Pick the best answer.

•  $10\cdot3\cdot f$  

•  $10\cdot f\cdot f\cdot f$  

•  $2\cdot5\cdot f\cdot f\cdot f$  

•  $10\cdot10\cdot10\cdot f\cdot f\cdot f$