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OpenStudy (anonymous):
Show the polynomial has a zero between -4 and -3: x^4-6x^3-30x^2+48x+121
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OpenStudy (anonymous):
\[f(x)=x^4-6x^3-30x^2+48x+121\] find \[f(-4)\] and \[f(-3)\] one will be positive, the other negative i have no idea which then since one is positive and one is negative, and since a polynomial is continuous it must be zero somewhere in between
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