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If (x +2) (x - 3) = 0 and x > $$\frac{1}{2}$$, what is the value of $$x^{-2}$$ ?
A、-$$\frac{1}{4}$$
B、-$$\frac{1}{9}$$
C、0
D、$$\frac{1}{9}$$
E、$$\frac{1}{4}$$
答案:D
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