Level 1
(n+2)(n+3)
n2+5n+6
(p−3)(p−1)
p2−4p+3
(n+4)(n−3)
n2+1n−12
(x-3)(x+3)
x2 - 9
(x+1)(x+1)
x2 + 2x + 1
(n+1)(n+2)
n2+3n+2
(p - 5)(p - 2)
p2-7p+10
(x+2)(x−8)
x2 - 6x - 16
(x+5)(x-5)
x2 - 25
(x-2)(x-2)
x2 -4x + 4
(x+4)(x+3)
x2+7x+12
(k−8)(k−5)
k2−13k+40
(x+7)(x-7)
x2 - 49
(x+6)(x+6)
x2 +12x + 36
(r+7)(r+9)
r2+16r+63
(v−10)(v−5)
v2−15v+50
(x-7)(x+4)
x2 - 3x - 28
(x+9)(x-9)
x2 - 81
(x-10)(x-10)
x2 -20x + 100
(n+13)(n+3)
n2+16n+39
(x−12)(x−8)
x2−20x+96
(v+12)(v−10)
v2+2v−120
(x-11)(x+11)
x2 - 121
(x+13)(x+13)
x2 +26x + 169