alleryWrite down the expanded sum for the reciprocal square (x + 1/x)^2.
Ax^2 + 1/x^2 - 2
Bx^2 + 1/x^2 + 4
Cx^2 + 1/x^2 + 2
Dx^2 + 1/x^2 + 1
Answer & Solution
Correct answer: C. x^2 + 1/x^2 + 2
The middle term simplifies to 2(x)(1/x) = 2, yielding x^2 + 1/x^2 + 2.
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