



 
Hi Victoria, I can help get you started. To solve $f(x) > 100$ you should first solve $f(x) = 100.$ Simplifying this expression gives \[2 x^3  17 x^2 + 11 x + 30 = 0\] I don't see any obvious factorization of the left side so I used the Factor Theorem. Try it and write back if you need more help,
 


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