Find all possible rational zeros of the equation

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Use the rational zeros theorem to list all possible rational zeros of the following.

h(x)= -5x^4 - 8x^3 + 5x^2 - 8x + 7

Be sure that no value in the list appears more than once. 

Oct 16th, 2015

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first term is 5 and its factors are 1 and 5

last term is 7 and its factors are 1 and 7

so +- (1,7)/(1,5) = +- 1/(1,5 ) , +- 7/(1/5)

+- (1,7)/(1,5) = +- 1/1 , +- 1/5, +- 7/1 , +- 7/5

+- (1,7)/(1,5) = +- 1 , +- 1/5, +- 7 , +- 7/5     are all possible rational zeros


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Oct 16th, 2015

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