Pre-lesson quiz - Algebraic expressions: multiply & divide

 $3x^2$  What is the 3 called?

• term

• variable

• co-efficient

• constant

• exponent

 $12y^3$  y is called a...

• co-efficient

• variable

• co-efficient

• constant

 $4a^2\ -5$  the constant is...

 $2x\ +\ 4x\ =\ ?$  

• 6x^2

• 6x

• 6 + x

 $24xy\ -\ 13xy\ =\ ?$  

• 11xy

• 11x + y

• 11 + x + y

• 11

 $12a^2b\ +\ 9a^3b\ +4a^2b\ =\ ?$  

• 25 a^7 b^3

• 16 a^2 b + 9 a^3 b

• 25 a^2 b

• 25 a^3 b

 $a^2\times a^3\ =\ +$  

• a ^5

• a ^6

• 2a ^5

• 2 a^6

 $b\ +\ b\ +\ b\ +\ c\ +c\ +\ b\ =\ ?$  

• 3b + 2c + b

• 4b + 2c

• b ^3 + c ^2 + b

• 6bc

 $\frac{\text{3b}}{\text{3b}}=\ 1$ 

• true

• false

 $8a^2\ +\ 3a^2\ -5a^2\ =\ 6a^2$  

• true

• false