Test Mode
Reading Mode
Right = 0
Wrong = 0
(x+5)(x-4)
(x-5)(x+5)
(x-5)(x+4)
(x-4)(x+4)
(1+a+b)(1-a+b)
(1+a+b)(1-a-b)
(1+a+b)(1+a-b)
(1+a-b)(1-a+b)
2(a-8)
(1+5)
(a+4)
(a+8)
(x-a+b)(x+a-b)
(x-a-b)(x-a+b)
(x+a-b)(x-a-b)
(x+a+b)(x-a-b)
(3x+4)(3x+10 )
(3x+4)(3x-10)
(3x-4)(3x+10)
(3x-4)(3x-10)
(x+y)(x+y)
(x+y)(x-y)
(x-y)(x-y)
(y+x)(y-x)
x+y+1
x-y
x+y-1
x-y-1