Question 1166349
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Use synthetic division


<pre>
        -----------------------
    2  | 1   0  -5   0   k
             2   4  -2  -4
        -----------------------
         1   2  -1  -2   k-4
</pre>


If *[tex \Large x\ -\ 2] is a factor, then 2 is a zero of the function, and if 2 is a zero of the function and is used as the divisor in synthetic division, the remainder must be zero, hence:


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ k\ -\ 4\ =\ 0]

																
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">


I > Ø
*[tex \Large \ \
*[tex \LARGE \ \ \ \ \ \ \ \ \ \  
								
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