a. (x + y) (x - y) = x2 - y
b. (x+1)2 = x + 2
2. What is the common factor to 12x2 and 8x?
a. 4x
b. 8x
:. One of the factors of x2 -5x +6 is x-3. What is
a. (x-2)
b. (x-3)
What are the factors of x2-16?
a. (x+4) (x-4)
b. (x+2)(x-8)​