100
Factories 4x + 16
4(x+16)
200
Factorise 12x + 15
3(4x +5)
300
5y(y+6)+9(x+5)
5y2+30y+9x+45
300
Factorise 5x + 35x
5x(x+7x)
400
2(x+12)+2x(3+6x)
8x+24+12x2
400
Factorise 6x2 + 3x
3x(2x + x)
500
3b( 7b + 6x + 2)
21b2 + 18bx + 6b
500
x(2x+5y)+y(7+2xy)
2x2+5xy+7y+2xy2
500
Factorise 6xy + 12x
3x( 2y + 4)