Problem Solving (PS) | Re: If n is a positive integer, then (-2^n)^{-2} + (2^{-n})^2 is equal to

Got this wrong on EP2, GMATPrep 6. It was question 16.

STUPID mistakes were made as I took the algebraic approach and incorrectly didn't apply the even power to the base properly.

The plug-in method is so much more effective on this.

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