Question 1094824
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x^3-9x+10 = 0 .


1.  Notice that x= 2 is the root.


2.  According to the Remainder theorem, it means that the given polynomial of degree 3 is divided by the binomial (x+2) without a remainder.


3.  Divide  x^3-9x+10  by (x+2)   (long division).

    You will get a quadratic polynomial.


4.  Find the roots of this quadratic polynomial using quadratic formula.
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That's all.