Algebraeasy · Past Paper

What are the factors of x^2 - 16?

A(x-4)(x-4)
B(x+4)(x+4)
C(x-4)(x+4)
D(x-8)(x+2)

✓ Correct Answer: C(x-4)(x+4)

This is a difference of two squares: a^2 - b^2 = (a-b)(a+b).

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