Algebramedium · Past Paper
Factorize: x^4 - 16
A(x^2-4)(x^2-4)
B(x-2)(x+2)(x^2+4)
C(x-2)(x+2)(x-2)(x+2)
D(x^2+8)(x^2-8)
✓ Correct Answer: B — (x-2)(x+2)(x^2+4)
(x^2)^2 - 4^2 = (x^2-4)(x^2+4) = (x-2)(x+2)(x^2+4).
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✓ Correct Answer: B — (x-2)(x+2)(x^2+4)
(x^2)^2 - 4^2 = (x^2-4)(x^2+4) = (x-2)(x+2)(x^2+4).
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