7. What is the expanded form of (3x + 1)3?
a. (3x + 1)(3x + 1)(3x + 1)
c. (3x + 1)(3x - 1)(3x +1)
b. (3x + 1)(3x - 1)(3x - 1)
d. (3x - 1)(3x - 1)(3x - 1)
8. What is the product of (x - 3)3?
a. X3 + 9x2 + 27x + 27
C. x3 + 27x + 27
b. x3 - 9x2 + 27x - 27
d. x3 + 9x2 + 27
9. Multiply (x2 + 2x + 4) by (x - 2), what is the result?
a. X3-8
C. X3 + 8
b. x3 - 6x2 - 2x - 8
d. x3 - 6x2 + 2x - 8
10. Find the product of (2 -4x+16) and (x + 4).
a. X3-64
C. X3 + 64
b. x3 - 4x2 - 16x + 64
d. x3 - 8x + 32x + 64


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