Year 8 Algebra Test

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An example of a constant is:

• x

• 3

• 3x

• 3(x-4)

A letter or symbol used to represent a value in algebra is called a

• variable

• constant

• expression

• algebra

How many terms does this expression have? $2a^2+4a+5$  

• 0

• 1

• 2

• 3

Which of these is a like term to the term shown: $3x^2$  

•  $2x^3$  

•  $3$  

•  $x^2y^2$  

•  $x^2$  

What is the coefficient of b in this expression?

 $\frac{x^2}{3}+x_{ }^2+2ax+b$  

• 1

• 1/3

• 2

• b

 $3x+5x-7x^2$  

Simplify by grouping like terms:

•  $8x-7x^2$  

•  $15x$  

•  $15x^2$  

•  $x^2$  

Simplify $5x\times7+3$  

• 5x+10

• 15x

• 38x

• 35x+3

Simplify: $5a\times2b\times3c$  

•  $10abc$  

•  $15abc$  

•  $30abc$  

•  $10+abc$  

Evaluate this expression if x = 3, a = 2 and b = 0

 $\frac{x^2}{3}+x_{ }^2+2ax+b$ 
 

• 19

• 4

• 24

• 0