Quiz At Home

Title: Multiplication of surds

Grade: 9-a Lesson: S3-L5

Explanation: Hello Students, time to practice and review. Let us take next 10-15 minutes to solve the five problems using the Quiz Sheet. Then submit the quiz to get the score. This is a good exercise to check your understanding of the concepts.

Quiz: at Home

Problem Id Problem Options

1

Simplify:
\$ (sqrt(529))/2 × (sqrt(729))/2 \$

A) \$ 621/4 \$

B) \$ 621/2 \$

C) \$ 621/5 \$

D) \$ 620/3 \$

2

Simplify:
\$ sqrt(5)/15 × sqrt(25)/5 × sqrt(75)/15 × sqrt(125)/5 \$

A) \$ sqrt(5)/9 \$

B) \$ sqrt(3)/9 \$

C) \$ sqrt(3)/2 \$

D) \$ sqrt(3)/6 \$

3

Simplify:
\$ (5sqrt(92))/2 × (2sqrt(82))/3 \$

A) \$ (10sqrt(1286))/3 \$

B) \$ (10sqrt(1886))/3 \$

C) \$ (15sqrt(1886))/3 \$

D) \$ (5sqrt(1886))/3 \$

4

Simplify:
\$ (6sqrt(18))/12 × (12sqrt(36))/18 × (18sqrt(72))/36 \$

A) \$ 216 \$

B) \$ 16 \$

C) \$ 36 \$

D) \$ 72 \$

5

Simplify:
\$ (4sqrt(22))/2 × (8sqrt(44))/4 × (16sqrt(88))/8 \$

A) \$ 704sqrt(22) \$

B) \$ 352sqrt(11) \$

C) \$ 704sqrt(11) \$

D) \$ 352sqrt(22) \$

Problem Id Problem Options

6

Expand the expression:
\$ (5x + 1/(5x))^2 \$

A) \$ 25x^2 + 1/(25x^2) + 2 \$

B) \$ 5x + 1/(5x) + 2 \$

C) \$ 25x^2 + 1/(25x^2) - 2 \$

D) \$ 5x - 1/(5x) + 2 \$

7

Expand the expression:
\$ (2x - 1/(5x))^2 \$

A) \$ 4x^2 + 1/(25x^2) + 4/5 \$

B) \$ 4x^2 + 1/(25x^2) - 4/5 \$

C) \$ 4x^2 - 1/(25x^2) - 4/5 \$

D) \$ 2x + 1/(5x) - 2/5 \$

8

Expand the expression:
\$ (3x - 1/(6x))^3 \$

A) \$ 27x^3 - 1/(216x^3) - (9x)/2 + 1/(4x) \$

B) \$ 27x^3 - 1/(216x^3) - (9x)/2 - 1/(4x) \$

C) \$ 27x^3 + 1/(216x^3) - (9x)/2 + 1/(4x) \$

D) \$ 27x^3 + 1/(216x^3) + (9x)/2 + 1/(4x) \$

9

Expand the expression:
\$ (2x + 1/(2x))^3 \$

A) \$ 8x^3 - 1/(8x^3) + 3/(2x) + 6x \$

B) \$ 8x^3 - 1/(8x^3) - 3/(2x) - 6x \$

C) \$ 8x^3 + 1/(8x^3) + 3/(2x) + 6x \$

D) \$ 8x^3 + 1/(8x^3) - 3/(2x) - 6x \$

10

Expand the expression:
\$ (-6x - 1/(2x))^3 \$

A) \$ 216x^3 + 1/(8x^3) - 9/(2x) - 54x \$

B) \$ 216x^3 + 1/(8x^3) + 9/(2x) + 54x \$

C) \$ 216x^3 - 1/(8x^3) + 9/(2x) + 54x \$

D) \$ 216x^3 - 1/(8x^3) - 9/(2x) - 54x \$


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