Algebramedium · Past Paper
Factorize: a^2 + 1/a^2 + 2
A(a + 1/a)^2
B(a - 1/a)^2
C(a + 1/a)(a - 1/a)
Da^2(1 + 1/a^4)
✓ Correct Answer: A — (a + 1/a)^2
a^2 + 2(a)(1/a) + (1/a)^2 = (a + 1/a)^2.
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