Factor each of the following polynomial. Color the box that corresponds to the right answer

1. 14x4 + 21x2

a. 7x2(2x2 + 3)
b. 7x(2x4 + 3)
c. 7x2(2x + 3)

2. 9x2+12xy+4y2

a.(3x+2y)(3x-2y)
b. (3x+2y)(3x+2y)
c. (3x-2y)(3x-2y)

3. 4x2-81

a. (2x + 9)(2x+9)
b.(2x-9)(2x-9)
c.(2x+9)(2x-9)

4. 8x3-8

a. (2x-2)(4x2+4x+4)
b. (2x-2)(4x2-4x+4)
c. (2x+2)(4x2+4x+4)

5. x3-64

a.(x+4)(x2-4x+16)
b. (x-4)(x2+4x+16)
c. (x+4)(x2+4x+16)

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