Grade 9 MATH QUIZ BEE

In the expression below, What will be the excluded value of x so that the expression will not be undefined?

 $\frac{2x^2-7}{x-3}$  

• 0

• 2

• 3

• -3

In the expression below, What will be the excluded value of x so that the expression will not be undefined?

 $\frac{5}{3x-1}$  

• 1

• 2

• 3

• 1/3

Express the expression in its simplest form: $\frac{w-2}{2-w}=$  

• 1

• -1

• 2

• -2

Express the expression in its simplest form: $\frac{3-2x}{2x-3}=$  

• 1

• -1

• 2

• -2

What would be the LCD of : $\frac{5x}{4},\ \frac{3}{2},\ \frac{7x}{8}$  

• 2

• 4

• 8

• 24

Solve for the value of x: $\frac{5x}{5x-1}+\frac{1}{x}=\frac{1}{5x-1}$  

• 1 and -1/5

• 5 and 1

• 1/5 and -1

• -5 and -1

Solve for the value of x: $\frac{5}{x+3}-\frac{4}{3x}=\frac{7}{x^2+3x}$  

• 3

• 11

• 33

• 44

Solve : $\left(3^6\right)\left(3^2\right)=$  

• 3^8

• 3^12

• 6,561

• 531,441

Simplify: $\left(\frac{5xy^{-3}}{2x^{-4}y}\right)^{-2}$  

• 4y^8

• 25x^10

• 4y^8/25x^10

• 25x^10/4y^8

Simplify: $\left(\sqrt{27}-\sqrt{8}\right)\left(\sqrt{3}-\sqrt{2}\right)$  

•  $8\sqrt{6}$  
  

•  $13\sqrt{6}$  
  

•  $13-5\sqrt{6}$  

•  $5-13\sqrt{6}$