Algebramedium · Past Paper

What are the factors of a^3 - 8?

A(a-2)(a^2+2a+4)
B(a-2)^3
C(a-2)(a^2-2a+4)
D(a+2)(a^2-2a+4)

✓ Correct Answer: A(a-2)(a^2+2a+4)

Difference of cubes: a^3 - b^3 = (a-b)(a^2+ab+b^2).

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