Expanding and Factorising

Expanding 1

100

3(x-1)

3x-3

200

2a(1+2a)

2a+4a^2 

300

(x+1)(x-3)

x^2 -2x-3

400

(3x-1)(x+2)

3x^2 +5x-2

500

(4x-2)(3x-1)

12x^2 -10x+2

Expanding 2

100

(x+1)(x-1)

x^2 -1

200

(2x-3)(2x+3)

4x^2 -9

300

(x-1)^2 

x^2 -2x+1

400

(2x+5)^2 

4x^2 +20x+25

500

(7-3x)^2 

49-42x+9x^2 

Factorising 1

100

3x+3

3(x+1)

200

4x-16

4(x-4)

300

4x+2

2(2x+1)

400

9x-21

3(3x-7)

500

10x^2+15x

5x(2x+3)

Factorising 2

100

x^2+12x+20

(x+2)(x+10)

200

x^2-8x-33

(x+11)(x-3)

300

x^2-4x+4

(x-2)^2

400

x^2+50x-600

(x+60)(x-10)

500

x^2-x-2

(x-2)(x+1)

Miscellaneous

100

What are the colours of the rainbow?

Red, Yellow, Pink, Green, Purple, Orange, Blue

200

How many teeth does an adult human have?

32 teeth! 

300

How long do elephant pregnancies last? 18, 20 or 22 months

22 months

400

What is the most consumed manufactured drink in the world?

Tea

500

How many languages are written from right to left?

12