Level 1
Level 2
Level 3
Level 4
100

(3n+2)(n+3)

3n2+11n+6

100

(3p−3)(p−1)

3p2−6p+3

100

(4n+4)(5n−8)

20n2−12n−32

100

(x + 3y)(2x - 5y)

2x2 + xy - 15y2

200

(n−1)(2n−2)

2n2−4n+2

200

(3p+3)(3p+2)

9p2+15p+6

200

(5x−2)(5x−8)

25x2−50x+16

200

(x - y)(3x - 2y)

3x2 -5xy + 2y2

300

(2x+3)(2x−3)

4x2−9

300

(k−2)(k−3)

k2−5k+6

300

(6x+2)(2x+8)

12x2+52x+16

300

(3 + 7x)(6 + 2x)

14x2 + 48x + 18

400

(r+1)(r−3)

r2−2r−3

400

(v−1)(3v−3)

3v2−6v+3

400

(3x+3)(x+4)

3x2+15x+12

400

(x2 + 3)(x2 + 3)

x4 +6x2 + 9

500

(2n+3)(2n+1)

4n2+8n+3

500

(2x−3)(3x+3)

6x2−3x−9

500

(5v+4)(3v−6)

15v2−18v−24

500

(x2 - 3y)(x + 7)

x3 + 7x2 - 3xy - 21