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anonymous
 one year ago
According to the Rational Root Theorem,2/5 is a potential rational root of which function?
f(x) = 4x^4 – 7x^2 + x + 25
f(x) = 9x^4 – 7x^2 + x + 10
f(x) = 10x^4 – 7x^2 + x + 9
f(x) = 25x^4 – 7x^2 + x + 4
anonymous
 one year ago
According to the Rational Root Theorem,2/5 is a potential rational root of which function? f(x) = 4x^4 – 7x^2 + x + 25 f(x) = 9x^4 – 7x^2 + x + 10 f(x) = 10x^4 – 7x^2 + x + 9 f(x) = 25x^4 – 7x^2 + x + 4

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jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2The rational root theorem basically says that if you divide the factors of the last term by the factors of the leading coefficient, then you'll get a list of all the potential rational roots For example, let's say we had the polynomial 10x^3 + 4x + 27 The leading coefficient is 10. One factor of 10 is \(\Large {\color{red}{2}}\) The last term is 27. One factor of 27 is \(\Large {\color{blue}{3}}\) So a potential rational root is \[\Large \frac{\color{blue}{\text{factor of last term}}}{\color{red}{\text{factor of first coefficient}}} = \frac{\color{blue}{3}}{\color{red}{2}}\]

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2Hopefully that example makes sense. If not, then let me know.
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