4.08 quiz: factoring difference of squares

question 1 (20 points)

factor: x^2 - 36

a.) (x - 6)(x + 6)

b.) (x - 6)^2

c.) (x - 36)(x + 36)

d.) (x + 36)^2

question 2 (10 points)

factor: 4x^4 - 64

a.) (4x - 8)(4x + 8)

b.) (2x^2 -8)2

c.) (2x^2 - 32)(2x^2 + 32)

d.) (2x^2 + 8)(2x^2 - 8)

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