1. What is the product of (k+2) (k-2)?

A. Perfect square trinomial
B. Quadratic trinomials
C. Difference of two squares
D. Difference of two cubes

2. The expression 2X + XY is equivalent to

A. 2(x+y)
B. x(2+y)
C. y (2x+1)
D. x(2-y)

3. What is the middle term when 5p-7 is squared?

A. -35p
B. 35p
C. -70p
D. 70p

4. Express (3x² +5) (2x² -3) as a polynomial.

A. 6x⁴-x²-15
B. 6x⁴-x²+15
C. 6x⁴-x²-15
D. 6x⁴-x²+15

5. Which factoring technique must be used first in order to factor 9m³-72n³?

A. Factoring greatest common factor
B. Factoring Difference of two squares
C. Factoring Difference of two cubes
D. Factoring by grouping​