Question 332873
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Just extend the FOIL process to include an additional term in the second multiplicand.


That is to say:  *[tex \Large x] times *[tex \Large x^2], then *[tex \Large x] times *[tex \Large -x], then *[tex \Large x] times *[tex \Large 7], then *[tex \Large 5] times *[tex \Large x^2], and so on.  When you have performed all six multiplications, collect like terms.



John
*[tex \LARGE e^{i\pi} + 1 = 0]
My calculator said it, I believe it, that settles it
<img src="http://c0rk.blogs.com/gr0undzer0/darwin-fish.jpg">
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