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# mathematics watch

1. f(x)=2x^3 -x^2 -13x -6
use the factor theorem and division to factories f(x) completely.
2. (Original post by hancyk)
f(x)=2x^3 -x^2 -13x -6
use the factor theorem and division to factories f(x) completely.
What have you done so far? You should try and figure out a number that is a factor of 6 (e.g. 1, 2 ,3), let's say a, such that for you have . Once you have figured it out then you should factorise it (in other words put it outside the brackets to get . Then just expand it out, and compare coefficients to find out the values a, b and c.
3. Hmmm......... interesting

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