EDGE Math 8

Loading...

. . . .

A
B
C
D
Result

Choose the correct answer to each question.

1.	What is the product of $\frac{4 x^{2} y^{3}}{{(a + b)}^{4}}$ and $\frac{{(a + b)}^{3} y^{5}}{18 y^{2} x^{3}} ?$

\frac{y^{4}}{4 x^{5} (a + b)}

\frac{2 y^{4}}{9 x^{5} (a + b)}

\frac{2 y^{6}}{9 x (a + b)}

\frac{2 y^{6}}{9 x^{5} (a + b)}

Answer: $\frac{2 y^{6}}{9 x (a + b)}$

2.	What is the product of $\frac{2 x + 8}{3 x + 9}$ and $\frac{x^{2} + 6 x + 9}{4 x + 16} ?$

\frac{x + 3}{6}

\frac{x + 4}{6 (x + 3)}

\frac{2 x + 3}{6}

\frac{x + 1}{2}

Answer: $\frac{x + 3}{6}$

3.	What is the quotient when $\frac{3 x^{2}}{5 x^{3}}$ is divided by $\frac{6 x^{2}}{5 x + 1} ?$

\frac{x + 1}{2 x^{5}}

\frac{5 x + 1}{10 x^{3}}

\frac{2 (x + 1)}{x^{5}}

\frac{1}{2 x^{4}}

Answer: $\frac{5 x + 1}{10 x^{3}}$

4.	What is the quotient when $\frac{x^{2} - 4}{x^{2} (x - 2)}$ is divided by $\frac{{(x + 2)}^{2}}{x^{3}} ?$

\frac{1}{2}

\frac{x}{x + 2}

\frac{x + 2}{2}

\frac{{(x + 2)}^{3}}{x^{5}}

Answer: $\frac{x}{x + 2}$

5.	What is the LCM of $10 x,$ $4 x,$ and $20 x^{2} ?$

4 x

40 x

20 x^{2}

40 x^{2}

Answer: $20 x^{2}$

0

/ 5