Question 320553
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This is the product of two conjugates.  The product is the difference of two squares.  Follow the pattern:


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ (a\ +\ b)(a\ -\ b)\ =\ a^2\ -\ b^2]


John
*[tex \LARGE e^{i\pi} + 1 = 0]
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