8.1 Rational Expressions

8.1 Rational Expressions

Multiple Choice

• $10x^4$

• $\frac{10x^3}{7}$

• $\frac{10x^4}{7}$

• $\frac{10}{7x^4}$

Multiple Choice

• $\frac{1}{y+6}$

• $\frac{1}{y-6}$

• $y-6$

• $y+6$

Multiple Choice

Note that: $\frac{\left(a-b\right)}{\left(b-a\right)}=-1$ 

•  $-p-7$  

•  $p-7$  
  

•  $-p+7$  

•  $p+7$  

Multiple Choice

• $\frac{12}{x^4}$
  

• $\frac{12}{y^4}$

• $\frac{x^4}{12}$
  

• $\frac{y^4}{12}$

Multiple Choice

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

• $\frac{1}{2}$

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

• 2

To divide rational expressions, multiply by the reciprocal!

Multiple Choice

• $12m^3$

• $12m^6$

• 12m

• $6m^6$

Multiple Choice

• $\frac{5}{4x}$

• $\frac{5}{8x}$

• $\frac{10\left(x+3\right)}{4x}$

• $\frac{10\left(x-2\right)}{4x}$