Math 90 - Check for Understanding

Math 90 - Check for Understanding

Solving Rational Equations

Poll

How are you feeling today?

• 😢

• 😐

• 😃

• 😴

Multiple Choice

Solve for x:  $\frac{5}{3}-\frac{2}{x}=\frac{8}{x}$  

•  $2$  

•  $\frac{18}{5}$  

•  $\frac{26}{5}$  

•  $6$  

Multiple Choice

Solve for x:  $x-8=-\frac{15}{x}$  

• x = 5, x = 3

• x = −5, x = −3

• x = 5

• x = −3

Multiple Choice

Solve for x:  $\frac{2}{x+2}+\frac{5}{x-2}=\frac{6}{x^2-4}$  

• 7

• 6

• 14

• 0

Multiple Choice

Solve:  $\frac{3}{x-5}-\frac{20}{x^2-25}=\frac{2}{x+5}$  

•  $x=-5$  

•  $x=5$  

•  $\frac{5}{\left(x+5\right)\left(x-5\right)}$  

• No Solution

Multiple Choice

Solve for x. Remember to check for extraneous solutions. $\frac{1}{4}=\frac{x+2}{2}-\frac{5x+15}{2x}$  

•  $x=6\ and\ x=-\frac{5}{2}$  

•  $x=-\frac{5}{2}$  

•  $x=\frac{5}{2}$  

•  $x=\frac{5}{2}\ and\ x=-\frac{5}{2}$  

Multiple Choice

Solve for x. Remember to check for extraneous solutions.
 $\frac{4}{x}=\frac{x^2-2x-3}{x^2}+\frac{x+3}{x^2}$  

•  $x=5$  

•  $x=4\ and\ x=-3$  

•  $x=1\ and\ x=-3$  

•  $x=-3$  

Multiple Choice

 Solve.

 $\frac{1}{x+3}=\frac{3}{x+2}-\frac{7}{x^2+5x+6}$  

• 5

•  $0$  

•  $8$  

•  $3$  

Multiple Choice

Solve $\frac{x-2}{3x}=\frac{1}{3x}+2$  

• 0

•  $-\frac{3}{5}$  

• -2

•  $-\frac{1}{5}$  

Open Ended

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