# Review

## Quiz by Duda Lemos

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10 questions
• Q1

Which expression is a simplified form of 3x 2-4x+5-x 2+2x-1

2x 2-2x+4

2x 2+2x+6

4x2-2x+6

120s
• Q2

What is the value of x that satisfies the equation 4x-9=2x+3?

3

6

2

5

120s
• Q3

Which of the following is equivalent the expression below?

(4x-5)+(2x+1)

6x-4

6x-4

2x-6

120s
• Q4

Which of the following is equivalent to the expression below?

3x2(5x2-2x+1)

15x4-6x3+3x2

8x2 -2x+1

8x2 +x+4

120s
• Q5

Aidan is buying a new CD player. The CD player was selling for \$84.79 and now is on sale for 25% off. Which of the following is closest to the total cost of the CD player, including 15% sales tax?

\$73.13

\$63.59

\$74.49

120s
• Q6

A rectangular field has a perimeter of (10a-6) metres and a width of 2a metres. Which expression represents the length of this field?

3a - 3

12a - 6

8a - 4

8a - 6

120s
• Q7

Which table shows a linear relationship between x and y?

120s
• Q8

Find the missing side.

19

15

28

120s
• Q9

What is the value z in the diagram below?

100

120

60

120s
• Q10

Which of the following shows the expression in its simplest form?

x4y

xy

30s

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