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how do i factor x cubed plus nine x squared minus one hundred and nine

 Aug 28, 2014

Best Answer 

 #1
avatar+130511 
+5

109 is a prime number, so this can't be factored in a real number form!!!!

Also, "factoring" the lead term - x^3 - would involve x and x^2. So we would have an additional "x" term that didn't exist in the original problem......

Thus, this one is irreducible to a factored form.......

 

 Aug 28, 2014
 #1
avatar+130511 
+5
Best Answer

109 is a prime number, so this can't be factored in a real number form!!!!

Also, "factoring" the lead term - x^3 - would involve x and x^2. So we would have an additional "x" term that didn't exist in the original problem......

Thus, this one is irreducible to a factored form.......

 

CPhill Aug 28, 2014

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