Expanding and Factoring Expressions

The purpose of this quiz is to let both ME, and YOUR TEACHERS know how you are tracking and let YOU know what you should practice

• ok

• yes

• i agree

• i cannot wait

Starting with revision of key questions from last quiz.

I recommend using a calculator, using a separate piece of paper for working out and use the slides on classroom as a reminder

• ok

• no

Write in expanded form:

 $7t^4$  

•  $7+t+t+t+t$  

•  $7\times4\times t$  

•  $7\times t\times t\times t\times t$  

•  $7+t\times t\times t\times t$  

Identify the coefficient in the expression.
6y + 7

• 6y
• 7
• 6
• 1

Work out the value of the following expressions when a = 3, b = 4 and c = 5.
2a² + c²   

• 22
• 34
• 68
• 43

 $3x^2+4x-2x^2+8x\ =$  

•  $5x^2+12x$  

•  $x^2+12x$  

•  $x^2-4x$  

•  $13x^2$  

Simplify 2b x 3b x 2t

• 12bbt

• 7b²t

• 12b²t

• 6b x 2t

Ideas for last class of term? (by no means will they happen though)

Are expanding and factorising the same thing?

• Yes

• Of course

• Sometimes?

• No.

What is the operation between the number and the brackets $23\left(x+y^2\right)$  

•  $\times$  

•  $\pm$  

•  $\div$  

•  $+$